Home / 209,531.56-314,640.38-137,600.68

Finding the Fourth Proportional to 209,531.56, 314,640.38 and 137,600.68

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Solution

The fourth proportional to 209,531.56, 314,640.38 and 137,600.68 is: 206,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,531.56 : 314,640.38 = 137,600.68 : x
  2. Step 2: Convert to fraction form
    209,531.56/314,640.38 = 137,600.68/x
  3. Step 3: Cross multiply
    209,531.56x = 314,640.38 × 137,600.68
  4. Step 4: Simplify right side
    209,531.56x = 43,294,730,243.46
  5. Step 5: Solve for x
    x = 43,294,730,243.46/209,531.56
  6. Step 6: Final answer
    x = 206,626.30

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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.