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Finding the Fourth Proportional to 243,994.07, 336,711.76 and 136,564.11

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Solution

The fourth proportional to 243,994.07, 336,711.76 and 136,564.11 is: 188,458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,994.07 : 336,711.76 = 136,564.11 : x
  2. Step 2: Convert to fraction form
    243,994.07/336,711.76 = 136,564.11/x
  3. Step 3: Cross multiply
    243,994.07x = 336,711.76 × 136,564.11
  4. Step 4: Simplify right side
    243,994.07x = 45,982,741,489.52
  5. Step 5: Solve for x
    x = 45,982,741,489.52/243,994.07
  6. Step 6: Final answer
    x = 188,458.44

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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.