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Finding the Fourth Proportional to 227,568.70, 341,353.05 and 143,587.90

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Solution

The fourth proportional to 227,568.70, 341,353.05 and 143,587.90 is: 215,381.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,568.70 : 341,353.05 = 143,587.90 : x
  2. Step 2: Convert to fraction form
    227,568.70/341,353.05 = 143,587.90/x
  3. Step 3: Cross multiply
    227,568.70x = 341,353.05 × 143,587.90
  4. Step 4: Simplify right side
    227,568.70x = 49,014,167,608.10
  5. Step 5: Solve for x
    x = 49,014,167,608.10/227,568.70
  6. Step 6: Final answer
    x = 215,381.85

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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.