Home / 209,037.28-288,470.19-113,543.14

Finding the Fourth Proportional to 209,037.28, 288,470.19 and 113,543.14

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Solution

The fourth proportional to 209,037.28, 288,470.19 and 113,543.14 is: 156,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,037.28 : 288,470.19 = 113,543.14 : x
  2. Step 2: Convert to fraction form
    209,037.28/288,470.19 = 113,543.14/x
  3. Step 3: Cross multiply
    209,037.28x = 288,470.19 × 113,543.14
  4. Step 4: Simplify right side
    209,037.28x = 32,753,811,169.00
  5. Step 5: Solve for x
    x = 32,753,811,169.00/209,037.28
  6. Step 6: Final answer
    x = 156,688.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.