Home / 338,979.12-508,472.28-102,323.76

Finding the Fourth Proportional to 338,979.12, 508,472.28 and 102,323.76

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Solution

The fourth proportional to 338,979.12, 508,472.28 and 102,323.76 is: 153,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,979.12 : 508,472.28 = 102,323.76 : x
  2. Step 2: Convert to fraction form
    338,979.12/508,472.28 = 102,323.76/x
  3. Step 3: Cross multiply
    338,979.12x = 508,472.28 × 102,323.76
  4. Step 4: Simplify right side
    338,979.12x = 52,028,795,545.37
  5. Step 5: Solve for x
    x = 52,028,795,545.37/338,979.12
  6. Step 6: Final answer
    x = 153,486.73

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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.