Home / 379,211.68-568,466.08-142,711.20

Finding the Fourth Proportional to 379,211.68, 568,466.08 and 142,711.20

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Solution

The fourth proportional to 379,211.68, 568,466.08 and 142,711.20 is: 213,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,211.68 : 568,466.08 = 142,711.20 : x
  2. Step 2: Convert to fraction form
    379,211.68/568,466.08 = 142,711.20/x
  3. Step 3: Cross multiply
    379,211.68x = 568,466.08 × 142,711.20
  4. Step 4: Simplify right side
    379,211.68x = 81,126,476,436.10
  5. Step 5: Solve for x
    x = 81,126,476,436.10/379,211.68
  6. Step 6: Final answer
    x = 213,934.54

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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.