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Finding the Fourth Proportional to 545,972.90, 818,813.55 and 166,892.90

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Solution

The fourth proportional to 545,972.90, 818,813.55 and 166,892.90 is: 250,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,972.90 : 818,813.55 = 166,892.90 : x
  2. Step 2: Convert to fraction form
    545,972.90/818,813.55 = 166,892.90/x
  3. Step 3: Cross multiply
    545,972.90x = 818,813.55 × 166,892.90
  4. Step 4: Simplify right side
    545,972.90x = 136,654,167,918.80
  5. Step 5: Solve for x
    x = 136,654,167,918.80/545,972.90
  6. Step 6: Final answer
    x = 250,294.78

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Similar ratio
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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.