Home / 310,182.40-428,001.38-193,882.11

Finding the Fourth Proportional to 310,182.40, 428,001.38 and 193,882.11

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Solution

The fourth proportional to 310,182.40, 428,001.38 and 193,882.11 is: 267,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,182.40 : 428,001.38 = 193,882.11 : x
  2. Step 2: Convert to fraction form
    310,182.40/428,001.38 = 193,882.11/x
  3. Step 3: Cross multiply
    310,182.40x = 428,001.38 × 193,882.11
  4. Step 4: Simplify right side
    310,182.40x = 82,981,808,789.95
  5. Step 5: Solve for x
    x = 82,981,808,789.95/310,182.40
  6. Step 6: Final answer
    x = 267,525.84

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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.