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Finding the Fourth Proportional to 207,121.24, 310,735.32 and 94,747.78

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Solution

The fourth proportional to 207,121.24, 310,735.32 and 94,747.78 is: 142,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,121.24 : 310,735.32 = 94,747.78 : x
  2. Step 2: Convert to fraction form
    207,121.24/310,735.32 = 94,747.78/x
  3. Step 3: Cross multiply
    207,121.24x = 310,735.32 × 94,747.78
  4. Step 4: Simplify right side
    207,121.24x = 29,441,481,737.59
  5. Step 5: Solve for x
    x = 29,441,481,737.59/207,121.24
  6. Step 6: Final answer
    x = 142,146.13

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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.