Home / 331,624.12-457,641.30-180,721

Finding the Fourth Proportional to 331,624.12, 457,641.30 and 180,721

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Solution

The fourth proportional to 331,624.12, 457,641.30 and 180,721 is: 249,394.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,624.12 : 457,641.30 = 180,721 : x
  2. Step 2: Convert to fraction form
    331,624.12/457,641.30 = 180,721/x
  3. Step 3: Cross multiply
    331,624.12x = 457,641.30 × 180,721
  4. Step 4: Simplify right side
    331,624.12x = 82,705,393,377.30
  5. Step 5: Solve for x
    x = 82,705,393,377.30/331,624.12
  6. Step 6: Final answer
    x = 249,394.99

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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.