Home / 645,125.13-967,314.08-218,517.98

Finding the Fourth Proportional to 645,125.13, 967,314.08 and 218,517.98

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Solution

The fourth proportional to 645,125.13, 967,314.08 and 218,517.98 is: 327,650.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,125.13 : 967,314.08 = 218,517.98 : x
  2. Step 2: Convert to fraction form
    645,125.13/967,314.08 = 218,517.98/x
  3. Step 3: Cross multiply
    645,125.13x = 967,314.08 × 218,517.98
  4. Step 4: Simplify right side
    645,125.13x = 211,375,514,496.88
  5. Step 5: Solve for x
    x = 211,375,514,496.88/645,125.13
  6. Step 6: Final answer
    x = 327,650.41

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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.