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Finding the Fourth Proportional to 243,842.74, 336,489.42 and 136,392.04

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Solution

The fourth proportional to 243,842.74, 336,489.42 and 136,392.04 is: 188,213.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,842.74 : 336,489.42 = 136,392.04 : x
  2. Step 2: Convert to fraction form
    243,842.74/336,489.42 = 136,392.04/x
  3. Step 3: Cross multiply
    243,842.74x = 336,489.42 × 136,392.04
  4. Step 4: Simplify right side
    243,842.74x = 45,894,478,432.22
  5. Step 5: Solve for x
    x = 45,894,478,432.22/243,842.74
  6. Step 6: Final answer
    x = 188,213.43

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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.