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Finding the Fourth Proportional to 276,670.60, 415,005.90 and 252,176.20

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Solution

The fourth proportional to 276,670.60, 415,005.90 and 252,176.20 is: 378,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,670.60 : 415,005.90 = 252,176.20 : x
  2. Step 2: Convert to fraction form
    276,670.60/415,005.90 = 252,176.20/x
  3. Step 3: Cross multiply
    276,670.60x = 415,005.90 × 252,176.20
  4. Step 4: Simplify right side
    276,670.60x = 104,654,610,839.58
  5. Step 5: Solve for x
    x = 104,654,610,839.58/276,670.60
  6. Step 6: Final answer
    x = 378,264.30

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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.