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Finding the Fourth Proportional to 382,295.04, 573,221.16 and 129,490.80

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Solution

The fourth proportional to 382,295.04, 573,221.16 and 129,490.80 is: 194,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,295.04 : 573,221.16 = 129,490.80 : x
  2. Step 2: Convert to fraction form
    382,295.04/573,221.16 = 129,490.80/x
  3. Step 3: Cross multiply
    382,295.04x = 573,221.16 × 129,490.80
  4. Step 4: Simplify right side
    382,295.04x = 74,226,866,585.33
  5. Step 5: Solve for x
    x = 74,226,866,585.33/382,295.04
  6. Step 6: Final answer
    x = 194,161.21

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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.