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Finding the Fourth Proportional to 243,773.82, 336,337.99 and 140,388.86

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Solution

The fourth proportional to 243,773.82, 336,337.99 and 140,388.86 is: 193,696.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,773.82 : 336,337.99 = 140,388.86 : x
  2. Step 2: Convert to fraction form
    243,773.82/336,337.99 = 140,388.86/x
  3. Step 3: Cross multiply
    243,773.82x = 336,337.99 × 140,388.86
  4. Step 4: Simplify right side
    243,773.82x = 47,218,107,480.66
  5. Step 5: Solve for x
    x = 47,218,107,480.66/243,773.82
  6. Step 6: Final answer
    x = 193,696.38

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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.