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Finding the Fourth Proportional to 252,481.02, 378,638.82 and 83,954.90

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Solution

The fourth proportional to 252,481.02, 378,638.82 and 83,954.90 is: 125,904.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,481.02 : 378,638.82 = 83,954.90 : x
  2. Step 2: Convert to fraction form
    252,481.02/378,638.82 = 83,954.90/x
  3. Step 3: Cross multiply
    252,481.02x = 378,638.82 × 83,954.90
  4. Step 4: Simplify right side
    252,481.02x = 31,788,582,376.02
  5. Step 5: Solve for x
    x = 31,788,582,376.02/252,481.02
  6. Step 6: Final answer
    x = 125,904.84

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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.