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Finding the Fourth Proportional to 379,878.72, 568,853.55 and 227,980.18

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Solution

The fourth proportional to 379,878.72, 568,853.55 and 227,980.18 is: 341,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,878.72 : 568,853.55 = 227,980.18 : x
  2. Step 2: Convert to fraction form
    379,878.72/568,853.55 = 227,980.18/x
  3. Step 3: Cross multiply
    379,878.72x = 568,853.55 × 227,980.18
  4. Step 4: Simplify right side
    379,878.72x = 129,687,334,722.64
  5. Step 5: Solve for x
    x = 129,687,334,722.64/379,878.72
  6. Step 6: Final answer
    x = 341,391.42

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1.5x scale

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.