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Finding the Fourth Proportional to 252,224.55, 378,212.85 and 83,687.63

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Solution

The fourth proportional to 252,224.55, 378,212.85 and 83,687.63 is: 125,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,224.55 : 378,212.85 = 83,687.63 : x
  2. Step 2: Convert to fraction form
    252,224.55/378,212.85 = 83,687.63/x
  3. Step 3: Cross multiply
    252,224.55x = 378,212.85 × 83,687.63
  4. Step 4: Simplify right side
    252,224.55x = 31,651,735,160.98
  5. Step 5: Solve for x
    x = 31,651,735,160.98/252,224.55
  6. Step 6: Final answer
    x = 125,490.30

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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.