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Finding the Fourth Proportional to 177,532.40, 266,449.80 and 72,426.80

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Solution

The fourth proportional to 177,532.40, 266,449.80 and 72,426.80 is: 108,701.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,532.40 : 266,449.80 = 72,426.80 : x
  2. Step 2: Convert to fraction form
    177,532.40/266,449.80 = 72,426.80/x
  3. Step 3: Cross multiply
    177,532.40x = 266,449.80 × 72,426.80
  4. Step 4: Simplify right side
    177,532.40x = 19,298,106,374.64
  5. Step 5: Solve for x
    x = 19,298,106,374.64/177,532.40
  6. Step 6: Final answer
    x = 108,701.88

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1.5x scale

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.