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Finding the Fourth Proportional to 243,062.30, 364,593.45 and 220,900.70

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Solution

The fourth proportional to 243,062.30, 364,593.45 and 220,900.70 is: 331,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,062.30 : 364,593.45 = 220,900.70 : x
  2. Step 2: Convert to fraction form
    243,062.30/364,593.45 = 220,900.70/x
  3. Step 3: Cross multiply
    243,062.30x = 364,593.45 × 220,900.70
  4. Step 4: Simplify right side
    243,062.30x = 80,538,948,320.42
  5. Step 5: Solve for x
    x = 80,538,948,320.42/243,062.30
  6. Step 6: Final answer
    x = 331,351.05

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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.