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Finding the Fourth Proportional to 240,391, 331,699.98 and 132,940

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Solution

The fourth proportional to 240,391, 331,699.98 and 132,940 is: 183,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,391 : 331,699.98 = 132,940 : x
  2. Step 2: Convert to fraction form
    240,391/331,699.98 = 132,940/x
  3. Step 3: Cross multiply
    240,391x = 331,699.98 × 132,940
  4. Step 4: Simplify right side
    240,391x = 44,096,195,341.20
  5. Step 5: Solve for x
    x = 44,096,195,341.20/240,391
  6. Step 6: Final answer
    x = 183,435.30

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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.