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Finding the Fourth Proportional to 319,866.92, 479,800.98 and 83,209.22

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Solution

The fourth proportional to 319,866.92, 479,800.98 and 83,209.22 is: 124,813.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,866.92 : 479,800.98 = 83,209.22 : x
  2. Step 2: Convert to fraction form
    319,866.92/479,800.98 = 83,209.22/x
  3. Step 3: Cross multiply
    319,866.92x = 479,800.98 × 83,209.22
  4. Step 4: Simplify right side
    319,866.92x = 39,923,865,301.04
  5. Step 5: Solve for x
    x = 39,923,865,301.04/319,866.92
  6. Step 6: Final answer
    x = 124,813.99

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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.