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Finding the Fourth Proportional to 243,396.31, 335,886.06 and 134,497.61

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Solution

The fourth proportional to 243,396.31, 335,886.06 and 134,497.61 is: 185,606.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,396.31 : 335,886.06 = 134,497.61 : x
  2. Step 2: Convert to fraction form
    243,396.31/335,886.06 = 134,497.61/x
  3. Step 3: Cross multiply
    243,396.31x = 335,886.06 × 134,497.61
  4. Step 4: Simplify right side
    243,396.31x = 45,175,873,519.64
  5. Step 5: Solve for x
    x = 45,175,873,519.64/243,396.31
  6. Step 6: Final answer
    x = 185,606.24

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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.