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Finding the Fourth Proportional to 252,360.66, 378,609.03 and 83,908.20

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Solution

The fourth proportional to 252,360.66, 378,609.03 and 83,908.20 is: 125,884.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,360.66 : 378,609.03 = 83,908.20 : x
  2. Step 2: Convert to fraction form
    252,360.66/378,609.03 = 83,908.20/x
  3. Step 3: Cross multiply
    252,360.66x = 378,609.03 × 83,908.20
  4. Step 4: Simplify right side
    252,360.66x = 31,768,402,211.05
  5. Step 5: Solve for x
    x = 31,768,402,211.05/252,360.66
  6. Step 6: Final answer
    x = 125,884.92

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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.