Home / 239,425.20-330,409.08-131,999.40

Finding the Fourth Proportional to 239,425.20, 330,409.08 and 131,999.40

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Solution

The fourth proportional to 239,425.20, 330,409.08 and 131,999.40 is: 182,160.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,425.20 : 330,409.08 = 131,999.40 : x
  2. Step 2: Convert to fraction form
    239,425.20/330,409.08 = 131,999.40/x
  3. Step 3: Cross multiply
    239,425.20x = 330,409.08 × 131,999.40
  4. Step 4: Simplify right side
    239,425.20x = 43,613,800,314.55
  5. Step 5: Solve for x
    x = 43,613,800,314.55/239,425.20
  6. Step 6: Final answer
    x = 182,160.44

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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.