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Finding the Fourth Proportional to 379,255.32, 567,648.54 and 279,376.20

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Solution

The fourth proportional to 379,255.32, 567,648.54 and 279,376.20 is: 418,154.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,255.32 : 567,648.54 = 279,376.20 : x
  2. Step 2: Convert to fraction form
    379,255.32/567,648.54 = 279,376.20/x
  3. Step 3: Cross multiply
    379,255.32x = 567,648.54 × 279,376.20
  4. Step 4: Simplify right side
    379,255.32x = 158,587,492,040.75
  5. Step 5: Solve for x
    x = 158,587,492,040.75/379,255.32
  6. Step 6: Final answer
    x = 418,154.96

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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.