Home / 386,306.92-533,101.88-216,541.05

Finding the Fourth Proportional to 386,306.92, 533,101.88 and 216,541.05

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Solution

The fourth proportional to 386,306.92, 533,101.88 and 216,541.05 is: 298,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,306.92 : 533,101.88 = 216,541.05 : x
  2. Step 2: Convert to fraction form
    386,306.92/533,101.88 = 216,541.05/x
  3. Step 3: Cross multiply
    386,306.92x = 533,101.88 × 216,541.05
  4. Step 4: Simplify right side
    386,306.92x = 115,438,439,769.47
  5. Step 5: Solve for x
    x = 115,438,439,769.47/386,306.92
  6. Step 6: Final answer
    x = 298,825.71

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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.