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Finding the Fourth Proportional to 247,906.40, 342,110.70 and 134,729.24

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Solution

The fourth proportional to 247,906.40, 342,110.70 and 134,729.24 is: 185,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,906.40 : 342,110.70 = 134,729.24 : x
  2. Step 2: Convert to fraction form
    247,906.40/342,110.70 = 134,729.24/x
  3. Step 3: Cross multiply
    247,906.40x = 342,110.70 × 134,729.24
  4. Step 4: Simplify right side
    247,906.40x = 46,092,314,606.87
  5. Step 5: Solve for x
    x = 46,092,314,606.87/247,906.40
  6. Step 6: Final answer
    x = 185,926.28

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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.