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Finding the Fourth Proportional to 143,753.76, 215,630.64 and 50,286.24

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Solution

The fourth proportional to 143,753.76, 215,630.64 and 50,286.24 is: 75,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,753.76 : 215,630.64 = 50,286.24 : x
  2. Step 2: Convert to fraction form
    143,753.76/215,630.64 = 50,286.24/x
  3. Step 3: Cross multiply
    143,753.76x = 215,630.64 × 50,286.24
  4. Step 4: Simplify right side
    143,753.76x = 10,843,254,114.39
  5. Step 5: Solve for x
    x = 10,843,254,114.39/143,753.76
  6. Step 6: Final answer
    x = 75,429.36

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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.