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Finding the Fourth Proportional to 239,363.92, 330,324.51 and 131,938.12

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Solution

The fourth proportional to 239,363.92, 330,324.51 and 131,938.12 is: 182,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,363.92 : 330,324.51 = 131,938.12 : x
  2. Step 2: Convert to fraction form
    239,363.92/330,324.51 = 131,938.12/x
  3. Step 3: Cross multiply
    239,363.92x = 330,324.51 × 131,938.12
  4. Step 4: Simplify right side
    239,363.92x = 43,582,394,839.32
  5. Step 5: Solve for x
    x = 43,582,394,839.32/239,363.92
  6. Step 6: Final answer
    x = 182,075.87

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1.5x scale

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.