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Finding the Fourth Proportional to 389,526.80, 584,117.40 and 179,229.20

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Solution

The fourth proportional to 389,526.80, 584,117.40 and 179,229.20 is: 268,764.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,526.80 : 584,117.40 = 179,229.20 : x
  2. Step 2: Convert to fraction form
    389,526.80/584,117.40 = 179,229.20/x
  3. Step 3: Cross multiply
    389,526.80x = 584,117.40 × 179,229.20
  4. Step 4: Simplify right side
    389,526.80x = 104,690,894,308.08
  5. Step 5: Solve for x
    x = 104,690,894,308.08/389,526.80
  6. Step 6: Final answer
    x = 268,764.29

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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.