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Finding the Fourth Proportional to 247,257.81, 341,215.78 and 134,080.65

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Solution

The fourth proportional to 247,257.81, 341,215.78 and 134,080.65 is: 185,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,257.81 : 341,215.78 = 134,080.65 : x
  2. Step 2: Convert to fraction form
    247,257.81/341,215.78 = 134,080.65/x
  3. Step 3: Cross multiply
    247,257.81x = 341,215.78 × 134,080.65
  4. Step 4: Simplify right side
    247,257.81x = 45,750,434,760.90
  5. Step 5: Solve for x
    x = 45,750,434,760.90/247,257.81
  6. Step 6: Final answer
    x = 185,031.30

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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.