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Finding the Fourth Proportional to 247,128, 341,073.06 and 156,492.24

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Solution

The fourth proportional to 247,128, 341,073.06 and 156,492.24 is: 215,982.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,128 : 341,073.06 = 156,492.24 : x
  2. Step 2: Convert to fraction form
    247,128/341,073.06 = 156,492.24/x
  3. Step 3: Cross multiply
    247,128x = 341,073.06 × 156,492.24
  4. Step 4: Simplify right side
    247,128x = 53,375,287,163.05
  5. Step 5: Solve for x
    x = 53,375,287,163.05/247,128
  6. Step 6: Final answer
    x = 215,982.35

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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.