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Finding the Fourth Proportional to 225,351.75, 310,894.34 and 129,807.27

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Solution

The fourth proportional to 225,351.75, 310,894.34 and 129,807.27 is: 179,081.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,351.75 : 310,894.34 = 129,807.27 : x
  2. Step 2: Convert to fraction form
    225,351.75/310,894.34 = 129,807.27/x
  3. Step 3: Cross multiply
    225,351.75x = 310,894.34 × 129,807.27
  4. Step 4: Simplify right side
    225,351.75x = 40,356,344,884.82
  5. Step 5: Solve for x
    x = 40,356,344,884.82/225,351.75
  6. Step 6: Final answer
    x = 179,081.57

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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.