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Finding the Fourth Proportional to 220,726.71, 330,640.66 and 202,335.39

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Solution

The fourth proportional to 220,726.71, 330,640.66 and 202,335.39 is: 303,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,726.71 : 330,640.66 = 202,335.39 : x
  2. Step 2: Convert to fraction form
    220,726.71/330,640.66 = 202,335.39/x
  3. Step 3: Cross multiply
    220,726.71x = 330,640.66 × 202,335.39
  4. Step 4: Simplify right side
    220,726.71x = 66,900,306,890.96
  5. Step 5: Solve for x
    x = 66,900,306,890.96/220,726.71
  6. Step 6: Final answer
    x = 303,091.13

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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.