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Finding the Fourth Proportional to 225,290.80, 310,896.57 and 123,313.87

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Solution

The fourth proportional to 225,290.80, 310,896.57 and 123,313.87 is: 170,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,290.80 : 310,896.57 = 123,313.87 : x
  2. Step 2: Convert to fraction form
    225,290.80/310,896.57 = 123,313.87/x
  3. Step 3: Cross multiply
    225,290.80x = 310,896.57 × 123,313.87
  4. Step 4: Simplify right side
    225,290.80x = 38,337,859,216.43
  5. Step 5: Solve for x
    x = 38,337,859,216.43/225,290.80
  6. Step 6: Final answer
    x = 170,170.55

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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.