Home / 245,152.26-338,308.11-137,720.03

Finding the Fourth Proportional to 245,152.26, 338,308.11 and 137,720.03

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Solution

The fourth proportional to 245,152.26, 338,308.11 and 137,720.03 is: 190,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,152.26 : 338,308.11 = 137,720.03 : x
  2. Step 2: Convert to fraction form
    245,152.26/338,308.11 = 137,720.03/x
  3. Step 3: Cross multiply
    245,152.26x = 338,308.11 × 137,720.03
  4. Step 4: Simplify right side
    245,152.26x = 46,591,801,366.90
  5. Step 5: Solve for x
    x = 46,591,801,366.90/245,152.26
  6. Step 6: Final answer
    x = 190,052.51

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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.