Home / 319,905.38-479,961.71-95,267.68

Finding the Fourth Proportional to 319,905.38, 479,961.71 and 95,267.68

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Solution

The fourth proportional to 319,905.38, 479,961.71 and 95,267.68 is: 142,932.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,905.38 : 479,961.71 = 95,267.68 : x
  2. Step 2: Convert to fraction form
    319,905.38/479,961.71 = 95,267.68/x
  3. Step 3: Cross multiply
    319,905.38x = 479,961.71 × 95,267.68
  4. Step 4: Simplify right side
    319,905.38x = 45,724,838,600.53
  5. Step 5: Solve for x
    x = 45,724,838,600.53/319,905.38
  6. Step 6: Final answer
    x = 142,932.38

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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.