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Finding the Fourth Proportional to 252,113.58, 378,229.11 and 83,621.58

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Solution

The fourth proportional to 252,113.58, 378,229.11 and 83,621.58 is: 125,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,113.58 : 378,229.11 = 83,621.58 : x
  2. Step 2: Convert to fraction form
    252,113.58/378,229.11 = 83,621.58/x
  3. Step 3: Cross multiply
    252,113.58x = 378,229.11 × 83,621.58
  4. Step 4: Simplify right side
    252,113.58x = 31,628,115,780.19
  5. Step 5: Solve for x
    x = 31,628,115,780.19/252,113.58
  6. Step 6: Final answer
    x = 125,451.85

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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.