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Finding the Fourth Proportional to 486,800.99, 730,270.59 and 149,869.64

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Solution

The fourth proportional to 486,800.99, 730,270.59 and 149,869.64 is: 224,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,800.99 : 730,270.59 = 149,869.64 : x
  2. Step 2: Convert to fraction form
    486,800.99/730,270.59 = 149,869.64/x
  3. Step 3: Cross multiply
    486,800.99x = 730,270.59 × 149,869.64
  4. Step 4: Simplify right side
    486,800.99x = 109,445,391,689.55
  5. Step 5: Solve for x
    x = 109,445,391,689.55/486,800.99
  6. Step 6: Final answer
    x = 224,825.74

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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.