Home / 408,230.23-612,624-141,988.09

Finding the Fourth Proportional to 408,230.23, 612,624 and 141,988.09

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Solution

The fourth proportional to 408,230.23, 612,624 and 141,988.09 is: 213,079.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,230.23 : 612,624 = 141,988.09 : x
  2. Step 2: Convert to fraction form
    408,230.23/612,624 = 141,988.09/x
  3. Step 3: Cross multiply
    408,230.23x = 612,624 × 141,988.09
  4. Step 4: Simplify right side
    408,230.23x = 86,985,311,648.16
  5. Step 5: Solve for x
    x = 86,985,311,648.16/408,230.23
  6. Step 6: Final answer
    x = 213,079.06

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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.