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Finding the Fourth Proportional to 239,810.25, 330,938.59 and 132,380.40

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Solution

The fourth proportional to 239,810.25, 330,938.59 and 132,380.40 is: 182,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,810.25 : 330,938.59 = 132,380.40 : x
  2. Step 2: Convert to fraction form
    239,810.25/330,938.59 = 132,380.40/x
  3. Step 3: Cross multiply
    239,810.25x = 330,938.59 × 132,380.40
  4. Step 4: Simplify right side
    239,810.25x = 43,809,782,774.83
  5. Step 5: Solve for x
    x = 43,809,782,774.83/239,810.25
  6. Step 6: Final answer
    x = 182,685.20

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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.