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Finding the Fourth Proportional to 540,747.78, 811,132.56 and 166,770.78

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Solution

The fourth proportional to 540,747.78, 811,132.56 and 166,770.78 is: 250,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,747.78 : 811,132.56 = 166,770.78 : x
  2. Step 2: Convert to fraction form
    540,747.78/811,132.56 = 166,770.78/x
  3. Step 3: Cross multiply
    540,747.78x = 811,132.56 × 166,770.78
  4. Step 4: Simplify right side
    540,747.78x = 135,273,209,714.60
  5. Step 5: Solve for x
    x = 135,273,209,714.60/540,747.78
  6. Step 6: Final answer
    x = 250,159.53

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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.