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Finding the Fourth Proportional to 319,347.73, 479,011.22 and 129,752.04

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Solution

The fourth proportional to 319,347.73, 479,011.22 and 129,752.04 is: 194,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,347.73 : 479,011.22 = 129,752.04 : x
  2. Step 2: Convert to fraction form
    319,347.73/479,011.22 = 129,752.04/x
  3. Step 3: Cross multiply
    319,347.73x = 479,011.22 × 129,752.04
  4. Step 4: Simplify right side
    319,347.73x = 62,152,684,611.99
  5. Step 5: Solve for x
    x = 62,152,684,611.99/319,347.73
  6. Step 6: Final answer
    x = 194,623.85

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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.