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Finding the Fourth Proportional to 247,869.02, 342,059.28 and 134,691.50

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Solution

The fourth proportional to 247,869.02, 342,059.28 and 134,691.50 is: 185,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,869.02 : 342,059.28 = 134,691.50 : x
  2. Step 2: Convert to fraction form
    247,869.02/342,059.28 = 134,691.50/x
  3. Step 3: Cross multiply
    247,869.02x = 342,059.28 × 134,691.50
  4. Step 4: Simplify right side
    247,869.02x = 46,072,477,512.12
  5. Step 5: Solve for x
    x = 46,072,477,512.12/247,869.02
  6. Step 6: Final answer
    x = 185,874.29

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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.