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Finding the Fourth Proportional to 247,836.78, 342,014.94 and 134,659.53

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Solution

The fourth proportional to 247,836.78, 342,014.94 and 134,659.53 is: 185,830.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,836.78 : 342,014.94 = 134,659.53 : x
  2. Step 2: Convert to fraction form
    247,836.78/342,014.94 = 134,659.53/x
  3. Step 3: Cross multiply
    247,836.78x = 342,014.94 × 134,659.53
  4. Step 4: Simplify right side
    247,836.78x = 46,055,571,073.38
  5. Step 5: Solve for x
    x = 46,055,571,073.38/247,836.78
  6. Step 6: Final answer
    x = 185,830.25

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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.