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Finding the Fourth Proportional to 418,092.56, 576,958.05 and 243,651.64

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Solution

The fourth proportional to 418,092.56, 576,958.05 and 243,651.64 is: 336,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,092.56 : 576,958.05 = 243,651.64 : x
  2. Step 2: Convert to fraction form
    418,092.56/576,958.05 = 243,651.64/x
  3. Step 3: Cross multiply
    418,092.56x = 576,958.05 × 243,651.64
  4. Step 4: Simplify right side
    418,092.56x = 140,576,773,875.44
  5. Step 5: Solve for x
    x = 140,576,773,875.44/418,092.56
  6. Step 6: Final answer
    x = 336,233.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.