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Finding the Fourth Proportional to 247,306.37, 341,290.53 and 139,874.31

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Solution

The fourth proportional to 247,306.37, 341,290.53 and 139,874.31 is: 193,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,306.37 : 341,290.53 = 139,874.31 : x
  2. Step 2: Convert to fraction form
    247,306.37/341,290.53 = 139,874.31/x
  3. Step 3: Cross multiply
    247,306.37x = 341,290.53 × 139,874.31
  4. Step 4: Simplify right side
    247,306.37x = 47,737,777,393.28
  5. Step 5: Solve for x
    x = 47,737,777,393.28/247,306.37
  6. Step 6: Final answer
    x = 193,030.93

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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.