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Finding the Fourth Proportional to 143,732.80, 215,560.80 and 50,228.80

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Solution

The fourth proportional to 143,732.80, 215,560.80 and 50,228.80 is: 75,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,732.80 : 215,560.80 = 50,228.80 : x
  2. Step 2: Convert to fraction form
    143,732.80/215,560.80 = 50,228.80/x
  3. Step 3: Cross multiply
    143,732.80x = 215,560.80 × 50,228.80
  4. Step 4: Simplify right side
    143,732.80x = 10,827,360,311.04
  5. Step 5: Solve for x
    x = 10,827,360,311.04/143,732.80
  6. Step 6: Final answer
    x = 75,329.78

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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.