Home / 377,789.40-521,342.91-216,635.04

Finding the Fourth Proportional to 377,789.40, 521,342.91 and 216,635.04

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Solution

The fourth proportional to 377,789.40, 521,342.91 and 216,635.04 is: 298,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,789.40 : 521,342.91 = 216,635.04 : x
  2. Step 2: Convert to fraction form
    377,789.40/521,342.91 = 216,635.04/x
  3. Step 3: Cross multiply
    377,789.40x = 521,342.91 × 216,635.04
  4. Step 4: Simplify right side
    377,789.40x = 112,941,142,161.57
  5. Step 5: Solve for x
    x = 112,941,142,161.57/377,789.40
  6. Step 6: Final answer
    x = 298,952.65

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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.