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Finding the Fourth Proportional to 225,569.88, 338,328.48 and 90,628.51

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Solution

The fourth proportional to 225,569.88, 338,328.48 and 90,628.51 is: 135,932.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,569.88 : 338,328.48 = 90,628.51 : x
  2. Step 2: Convert to fraction form
    225,569.88/338,328.48 = 90,628.51/x
  3. Step 3: Cross multiply
    225,569.88x = 338,328.48 × 90,628.51
  4. Step 4: Simplify right side
    225,569.88x = 30,662,203,888.18
  5. Step 5: Solve for x
    x = 30,662,203,888.18/225,569.88
  6. Step 6: Final answer
    x = 135,932.18

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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.