Home / 215,481.76-297,364.08-119,989.60

Finding the Fourth Proportional to 215,481.76, 297,364.08 and 119,989.60

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Solution

The fourth proportional to 215,481.76, 297,364.08 and 119,989.60 is: 165,585.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,481.76 : 297,364.08 = 119,989.60 : x
  2. Step 2: Convert to fraction form
    215,481.76/297,364.08 = 119,989.60/x
  3. Step 3: Cross multiply
    215,481.76x = 297,364.08 × 119,989.60
  4. Step 4: Simplify right side
    215,481.76x = 35,680,597,013.57
  5. Step 5: Solve for x
    x = 35,680,597,013.57/215,481.76
  6. Step 6: Final answer
    x = 165,585.23

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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.