Home / 215,890.80-323,447.40-132,687.60

Finding the Fourth Proportional to 215,890.80, 323,447.40 and 132,687.60

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Solution

The fourth proportional to 215,890.80, 323,447.40 and 132,687.60 is: 198,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,890.80 : 323,447.40 = 132,687.60 : x
  2. Step 2: Convert to fraction form
    215,890.80/323,447.40 = 132,687.60/x
  3. Step 3: Cross multiply
    215,890.80x = 323,447.40 × 132,687.60
  4. Step 4: Simplify right side
    215,890.80x = 42,917,459,232.24
  5. Step 5: Solve for x
    x = 42,917,459,232.24/215,890.80
  6. Step 6: Final answer
    x = 198,792.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.