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Finding the Fourth Proportional to 151,372.75, 208,894.40 and 84,304.75

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Solution

The fourth proportional to 151,372.75, 208,894.40 and 84,304.75 is: 116,340.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,372.75 : 208,894.40 = 84,304.75 : x
  2. Step 2: Convert to fraction form
    151,372.75/208,894.40 = 84,304.75/x
  3. Step 3: Cross multiply
    151,372.75x = 208,894.40 × 84,304.75
  4. Step 4: Simplify right side
    151,372.75x = 17,610,790,168.40
  5. Step 5: Solve for x
    x = 17,610,790,168.40/151,372.75
  6. Step 6: Final answer
    x = 116,340.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.