Home / 338,939.04-508,421.82-102,281.76

Finding the Fourth Proportional to 338,939.04, 508,421.82 and 102,281.76

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Solution

The fourth proportional to 338,939.04, 508,421.82 and 102,281.76 is: 153,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,939.04 : 508,421.82 = 102,281.76 : x
  2. Step 2: Convert to fraction form
    338,939.04/508,421.82 = 102,281.76/x
  3. Step 3: Cross multiply
    338,939.04x = 508,421.82 × 102,281.76
  4. Step 4: Simplify right side
    338,939.04x = 52,002,278,572.00
  5. Step 5: Solve for x
    x = 52,002,278,572.00/338,939.04
  6. Step 6: Final answer
    x = 153,426.64

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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.