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Finding the Fourth Proportional to 247,597.78, 341,689.05 and 134,420.50

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Solution

The fourth proportional to 247,597.78, 341,689.05 and 134,420.50 is: 185,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,597.78 : 341,689.05 = 134,420.50 : x
  2. Step 2: Convert to fraction form
    247,597.78/341,689.05 = 134,420.50/x
  3. Step 3: Cross multiply
    247,597.78x = 341,689.05 × 134,420.50
  4. Step 4: Simplify right side
    247,597.78x = 45,930,012,945.53
  5. Step 5: Solve for x
    x = 45,930,012,945.53/247,597.78
  6. Step 6: Final answer
    x = 185,502.52

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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.