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Finding the Fourth Proportional to 486,965.10, 730,460.11 and 230,737.55

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Solution

The fourth proportional to 486,965.10, 730,460.11 and 230,737.55 is: 346,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,965.10 : 730,460.11 = 230,737.55 : x
  2. Step 2: Convert to fraction form
    486,965.10/730,460.11 = 230,737.55/x
  3. Step 3: Cross multiply
    486,965.10x = 730,460.11 × 230,737.55
  4. Step 4: Simplify right side
    486,965.10x = 168,544,576,154.13
  5. Step 5: Solve for x
    x = 168,544,576,154.13/486,965.10
  6. Step 6: Final answer
    x = 346,112.23

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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.