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Finding the Fourth Proportional to 247,948, 342,125.92 and 140,495.84

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Solution

The fourth proportional to 247,948, 342,125.92 and 140,495.84 is: 193,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,948 : 342,125.92 = 140,495.84 : x
  2. Step 2: Convert to fraction form
    247,948/342,125.92 = 140,495.84/x
  3. Step 3: Cross multiply
    247,948x = 342,125.92 × 140,495.84
  4. Step 4: Simplify right side
    247,948x = 48,067,268,516.17
  5. Step 5: Solve for x
    x = 48,067,268,516.17/247,948
  6. Step 6: Final answer
    x = 193,860.28

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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.