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Finding the Fourth Proportional to 377,542.13, 520,932.62 and 216,447.71

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Solution

The fourth proportional to 377,542.13, 520,932.62 and 216,447.71 is: 298,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,542.13 : 520,932.62 = 216,447.71 : x
  2. Step 2: Convert to fraction form
    377,542.13/520,932.62 = 216,447.71/x
  3. Step 3: Cross multiply
    377,542.13x = 520,932.62 × 216,447.71
  4. Step 4: Simplify right side
    377,542.13x = 112,754,671,581.06
  5. Step 5: Solve for x
    x = 112,754,671,581.06/377,542.13
  6. Step 6: Final answer
    x = 298,654.54

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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.