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Finding the Fourth Proportional to 402,568.80, 603,853.20 and 136,265.10

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Solution

The fourth proportional to 402,568.80, 603,853.20 and 136,265.10 is: 204,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,568.80 : 603,853.20 = 136,265.10 : x
  2. Step 2: Convert to fraction form
    402,568.80/603,853.20 = 136,265.10/x
  3. Step 3: Cross multiply
    402,568.80x = 603,853.20 × 136,265.10
  4. Step 4: Simplify right side
    402,568.80x = 82,284,116,683.32
  5. Step 5: Solve for x
    x = 82,284,116,683.32/402,568.80
  6. Step 6: Final answer
    x = 204,397.65

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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.