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Finding the Fourth Proportional to 391,390.96, 586,901.36 and 151,617.16

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Solution

The fourth proportional to 391,390.96, 586,901.36 and 151,617.16 is: 227,354.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,390.96 : 586,901.36 = 151,617.16 : x
  2. Step 2: Convert to fraction form
    391,390.96/586,901.36 = 151,617.16/x
  3. Step 3: Cross multiply
    391,390.96x = 586,901.36 × 151,617.16
  4. Step 4: Simplify right side
    391,390.96x = 88,984,317,403.34
  5. Step 5: Solve for x
    x = 88,984,317,403.34/391,390.96
  6. Step 6: Final answer
    x = 227,354.04

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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.