Home / 386,306.42-533,101.19-216,540.55

Finding the Fourth Proportional to 386,306.42, 533,101.19 and 216,540.55

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Solution

The fourth proportional to 386,306.42, 533,101.19 and 216,540.55 is: 298,825.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,306.42 : 533,101.19 = 216,540.55 : x
  2. Step 2: Convert to fraction form
    386,306.42/533,101.19 = 216,540.55/x
  3. Step 3: Cross multiply
    386,306.42x = 533,101.19 × 216,540.55
  4. Step 4: Simplify right side
    386,306.42x = 115,438,022,472.80
  5. Step 5: Solve for x
    x = 115,438,022,472.80/386,306.42
  6. Step 6: Final answer
    x = 298,825.01

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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.