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Finding the Fourth Proportional to 177,344.80, 266,114.40 and 72,239.20

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Solution

The fourth proportional to 177,344.80, 266,114.40 and 72,239.20 is: 108,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,344.80 : 266,114.40 = 72,239.20 : x
  2. Step 2: Convert to fraction form
    177,344.80/266,114.40 = 72,239.20/x
  3. Step 3: Cross multiply
    177,344.80x = 266,114.40 × 72,239.20
  4. Step 4: Simplify right side
    177,344.80x = 19,223,891,364.48
  5. Step 5: Solve for x
    x = 19,223,891,364.48/177,344.80
  6. Step 6: Final answer
    x = 108,398.39

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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.