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Finding the Fourth Proportional to 243,950.87, 336,687.42 and 140,565.28

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Solution

The fourth proportional to 243,950.87, 336,687.42 and 140,565.28 is: 194,000.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,950.87 : 336,687.42 = 140,565.28 : x
  2. Step 2: Convert to fraction form
    243,950.87/336,687.42 = 140,565.28/x
  3. Step 3: Cross multiply
    243,950.87x = 336,687.42 × 140,565.28
  4. Step 4: Simplify right side
    243,950.87x = 47,326,561,464.78
  5. Step 5: Solve for x
    x = 47,326,561,464.78/243,950.87
  6. Step 6: Final answer
    x = 194,000.38

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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.