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Finding the Fourth Proportional to 239,810.74, 330,938.50 and 132,380.52

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Solution

The fourth proportional to 239,810.74, 330,938.50 and 132,380.52 is: 182,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,810.74 : 330,938.50 = 132,380.52 : x
  2. Step 2: Convert to fraction form
    239,810.74/330,938.50 = 132,380.52/x
  3. Step 3: Cross multiply
    239,810.74x = 330,938.50 × 132,380.52
  4. Step 4: Simplify right side
    239,810.74x = 43,809,810,718.02
  5. Step 5: Solve for x
    x = 43,809,810,718.02/239,810.74
  6. Step 6: Final answer
    x = 182,684.94

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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.