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Finding the Fourth Proportional to 309,411.28, 464,117.28 and 84,773.62

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Solution

The fourth proportional to 309,411.28, 464,117.28 and 84,773.62 is: 127,160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,411.28 : 464,117.28 = 84,773.62 : x
  2. Step 2: Convert to fraction form
    309,411.28/464,117.28 = 84,773.62/x
  3. Step 3: Cross multiply
    309,411.28x = 464,117.28 × 84,773.62
  4. Step 4: Simplify right side
    309,411.28x = 39,344,901,930.15
  5. Step 5: Solve for x
    x = 39,344,901,930.15/309,411.28
  6. Step 6: Final answer
    x = 127,160.53

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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.