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Finding the Fourth Proportional to 143,504.67, 215,248.25 and 53,530

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Solution

The fourth proportional to 143,504.67, 215,248.25 and 53,530 is: 80,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,504.67 : 215,248.25 = 53,530 : x
  2. Step 2: Convert to fraction form
    143,504.67/215,248.25 = 53,530/x
  3. Step 3: Cross multiply
    143,504.67x = 215,248.25 × 53,530
  4. Step 4: Simplify right side
    143,504.67x = 11,522,238,554.85
  5. Step 5: Solve for x
    x = 11,522,238,554.85/143,504.67
  6. Step 6: Final answer
    x = 80,291.74

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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.