Home / 379,271.08-568,989.70-142,613.76

Finding the Fourth Proportional to 379,271.08, 568,989.70 and 142,613.76

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Solution

The fourth proportional to 379,271.08, 568,989.70 and 142,613.76 is: 213,951.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,271.08 : 568,989.70 = 142,613.76 : x
  2. Step 2: Convert to fraction form
    379,271.08/568,989.70 = 142,613.76/x
  3. Step 3: Cross multiply
    379,271.08x = 568,989.70 × 142,613.76
  4. Step 4: Simplify right side
    379,271.08x = 81,145,757,673.32
  5. Step 5: Solve for x
    x = 81,145,757,673.32/379,271.08
  6. Step 6: Final answer
    x = 213,951.88

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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.