Home / 516,243.20-774,306.72-179,221.76

Finding the Fourth Proportional to 516,243.20, 774,306.72 and 179,221.76

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Solution

The fourth proportional to 516,243.20, 774,306.72 and 179,221.76 is: 268,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,243.20 : 774,306.72 = 179,221.76 : x
  2. Step 2: Convert to fraction form
    516,243.20/774,306.72 = 179,221.76/x
  3. Step 3: Cross multiply
    516,243.20x = 774,306.72 × 179,221.76
  4. Step 4: Simplify right side
    516,243.20x = 138,772,613,138.23
  5. Step 5: Solve for x
    x = 138,772,613,138.23/516,243.20
  6. Step 6: Final answer
    x = 268,812.48

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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.