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Finding the Fourth Proportional to 376,466.86, 519,522.76 and 215,321.68

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Solution

The fourth proportional to 376,466.86, 519,522.76 and 215,321.68 is: 297,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,466.86 : 519,522.76 = 215,321.68 : x
  2. Step 2: Convert to fraction form
    376,466.86/519,522.76 = 215,321.68/x
  3. Step 3: Cross multiply
    376,466.86x = 519,522.76 × 215,321.68
  4. Step 4: Simplify right side
    376,466.86x = 111,864,513,481.44
  5. Step 5: Solve for x
    x = 111,864,513,481.44/376,466.86
  6. Step 6: Final answer
    x = 297,143.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.