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Finding the Fourth Proportional to 177,522.40, 266,434.80 and 72,416.80

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Solution

The fourth proportional to 177,522.40, 266,434.80 and 72,416.80 is: 108,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,522.40 : 266,434.80 = 72,416.80 : x
  2. Step 2: Convert to fraction form
    177,522.40/266,434.80 = 72,416.80/x
  3. Step 3: Cross multiply
    177,522.40x = 266,434.80 × 72,416.80
  4. Step 4: Simplify right side
    177,522.40x = 19,294,355,624.64
  5. Step 5: Solve for x
    x = 19,294,355,624.64/177,522.40
  6. Step 6: Final answer
    x = 108,686.88

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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.