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Finding the Fourth Proportional to 143,908.84, 215,838.96 and 38,704.42

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Solution

The fourth proportional to 143,908.84, 215,838.96 and 38,704.42 is: 58,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,908.84 : 215,838.96 = 38,704.42 : x
  2. Step 2: Convert to fraction form
    143,908.84/215,838.96 = 38,704.42/x
  3. Step 3: Cross multiply
    143,908.84x = 215,838.96 × 38,704.42
  4. Step 4: Simplify right side
    143,908.84x = 8,353,921,760.20
  5. Step 5: Solve for x
    x = 8,353,921,760.20/143,908.84
  6. Step 6: Final answer
    x = 58,050.09

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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.