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Finding the Fourth Proportional to 240,712.76, 332,188.80 and 131,821.68

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Solution

The fourth proportional to 240,712.76, 332,188.80 and 131,821.68 is: 181,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,712.76 : 332,188.80 = 131,821.68 : x
  2. Step 2: Convert to fraction form
    240,712.76/332,188.80 = 131,821.68/x
  3. Step 3: Cross multiply
    240,712.76x = 332,188.80 × 131,821.68
  4. Step 4: Simplify right side
    240,712.76x = 43,789,685,693.18
  5. Step 5: Solve for x
    x = 43,789,685,693.18/240,712.76
  6. Step 6: Final answer
    x = 181,916.76

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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.