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Finding the Fourth Proportional to 247,892.70, 342,084.51 and 134,715.66

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Solution

The fourth proportional to 247,892.70, 342,084.51 and 134,715.66 is: 185,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,892.70 : 342,084.51 = 134,715.66 : x
  2. Step 2: Convert to fraction form
    247,892.70/342,084.51 = 134,715.66/x
  3. Step 3: Cross multiply
    247,892.70x = 342,084.51 × 134,715.66
  4. Step 4: Simplify right side
    247,892.70x = 46,084,140,540.43
  5. Step 5: Solve for x
    x = 46,084,140,540.43/247,892.70
  6. Step 6: Final answer
    x = 185,903.58

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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.