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Finding the Fourth Proportional to 489,934.80, 734,901.93 and 153,004.32

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Solution

The fourth proportional to 489,934.80, 734,901.93 and 153,004.32 is: 229,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,934.80 : 734,901.93 = 153,004.32 : x
  2. Step 2: Convert to fraction form
    489,934.80/734,901.93 = 153,004.32/x
  3. Step 3: Cross multiply
    489,934.80x = 734,901.93 × 153,004.32
  4. Step 4: Simplify right side
    489,934.80x = 112,443,170,066.34
  5. Step 5: Solve for x
    x = 112,443,170,066.34/489,934.80
  6. Step 6: Final answer
    x = 229,506.40

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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.