Home / 516,747.20-775,070.66-156,921.15

Finding the Fourth Proportional to 516,747.20, 775,070.66 and 156,921.15

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Solution

The fourth proportional to 516,747.20, 775,070.66 and 156,921.15 is: 235,366.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,747.20 : 775,070.66 = 156,921.15 : x
  2. Step 2: Convert to fraction form
    516,747.20/775,070.66 = 156,921.15/x
  3. Step 3: Cross multiply
    516,747.20x = 775,070.66 × 156,921.15
  4. Step 4: Simplify right side
    516,747.20x = 121,624,978,513.85
  5. Step 5: Solve for x
    x = 121,624,978,513.85/516,747.20
  6. Step 6: Final answer
    x = 235,366.50

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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.