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Finding the Fourth Proportional to 247,255.98, 341,215.40 and 134,078.74

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Solution

The fourth proportional to 247,255.98, 341,215.40 and 134,078.74 is: 185,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,255.98 : 341,215.40 = 134,078.74 : x
  2. Step 2: Convert to fraction form
    247,255.98/341,215.40 = 134,078.74/x
  3. Step 3: Cross multiply
    247,255.98x = 341,215.40 × 134,078.74
  4. Step 4: Simplify right side
    247,255.98x = 45,749,730,900.60
  5. Step 5: Solve for x
    x = 45,749,730,900.60/247,255.98
  6. Step 6: Final answer
    x = 185,029.83

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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.