Home / 668,378.76-1,002,167.52-212,773.20

Finding the Fourth Proportional to 668,378.76, 1,002,167.52 and 212,773.20

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Solution

The fourth proportional to 668,378.76, 1,002,167.52 and 212,773.20 is: 319,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,378.76 : 1,002,167.52 = 212,773.20 : x
  2. Step 2: Convert to fraction form
    668,378.76/1,002,167.52 = 212,773.20/x
  3. Step 3: Cross multiply
    668,378.76x = 1,002,167.52 × 212,773.20
  4. Step 4: Simplify right side
    668,378.76x = 213,234,390,166.46
  5. Step 5: Solve for x
    x = 213,234,390,166.46/668,378.76
  6. Step 6: Final answer
    x = 319,032.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.