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Finding the Fourth Proportional to 183,708.38, 275,580 and 71,397.28

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Solution

The fourth proportional to 183,708.38, 275,580 and 71,397.28 is: 107,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,708.38 : 275,580 = 71,397.28 : x
  2. Step 2: Convert to fraction form
    183,708.38/275,580 = 71,397.28/x
  3. Step 3: Cross multiply
    183,708.38x = 275,580 × 71,397.28
  4. Step 4: Simplify right side
    183,708.38x = 19,675,662,422.40
  5. Step 5: Solve for x
    x = 19,675,662,422.40/183,708.38
  6. Step 6: Final answer
    x = 107,102.69

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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.