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Finding the Fourth Proportional to 177,725.80, 266,459.10 and 72,490.60

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Solution

The fourth proportional to 177,725.80, 266,459.10 and 72,490.60 is: 108,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,725.80 : 266,459.10 = 72,490.60 : x
  2. Step 2: Convert to fraction form
    177,725.80/266,459.10 = 72,490.60/x
  3. Step 3: Cross multiply
    177,725.80x = 266,459.10 × 72,490.60
  4. Step 4: Simplify right side
    177,725.80x = 19,315,780,034.46
  5. Step 5: Solve for x
    x = 19,315,780,034.46/177,725.80
  6. Step 6: Final answer
    x = 108,683.04

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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.