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Finding the Fourth Proportional to 376,373.76, 519,390.72 and 215,255.04

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Solution

The fourth proportional to 376,373.76, 519,390.72 and 215,255.04 is: 297,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,373.76 : 519,390.72 = 215,255.04 : x
  2. Step 2: Convert to fraction form
    376,373.76/519,390.72 = 215,255.04/x
  3. Step 3: Cross multiply
    376,373.76x = 519,390.72 × 215,255.04
  4. Step 4: Simplify right side
    376,373.76x = 111,801,470,209.23
  5. Step 5: Solve for x
    x = 111,801,470,209.23/376,373.76
  6. Step 6: Final answer
    x = 297,049.06

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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.