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Finding the Fourth Proportional to 489,441.80, 734,162.70 and 157,051.40

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Solution

The fourth proportional to 489,441.80, 734,162.70 and 157,051.40 is: 235,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,441.80 : 734,162.70 = 157,051.40 : x
  2. Step 2: Convert to fraction form
    489,441.80/734,162.70 = 157,051.40/x
  3. Step 3: Cross multiply
    489,441.80x = 734,162.70 × 157,051.40
  4. Step 4: Simplify right side
    489,441.80x = 115,301,279,862.78
  5. Step 5: Solve for x
    x = 115,301,279,862.78/489,441.80
  6. Step 6: Final answer
    x = 235,577.10

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Similar ratio
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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.