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Finding the Fourth Proportional to 247,238.48, 370,764.60 and 89,427.92

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Solution

The fourth proportional to 247,238.48, 370,764.60 and 89,427.92 is: 134,108.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,238.48 : 370,764.60 = 89,427.92 : x
  2. Step 2: Convert to fraction form
    247,238.48/370,764.60 = 89,427.92/x
  3. Step 3: Cross multiply
    247,238.48x = 370,764.60 × 89,427.92
  4. Step 4: Simplify right side
    247,238.48x = 33,156,706,987.63
  5. Step 5: Solve for x
    x = 33,156,706,987.63/247,238.48
  6. Step 6: Final answer
    x = 134,108.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.