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Finding the Fourth Proportional to 489,904.32, 734,856.48 and 157,506.24

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Solution

The fourth proportional to 489,904.32, 734,856.48 and 157,506.24 is: 236,259.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904.32 : 734,856.48 = 157,506.24 : x
  2. Step 2: Convert to fraction form
    489,904.32/734,856.48 = 157,506.24/x
  3. Step 3: Cross multiply
    489,904.32x = 734,856.48 × 157,506.24
  4. Step 4: Simplify right side
    489,904.32x = 115,744,481,104.44
  5. Step 5: Solve for x
    x = 115,744,481,104.44/489,904.32
  6. Step 6: Final answer
    x = 236,259.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.