Home / 245,587.28-338,930.13-138,150.90

Finding the Fourth Proportional to 245,587.28, 338,930.13 and 138,150.90

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Solution

The fourth proportional to 245,587.28, 338,930.13 and 138,150.90 is: 190,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,587.28 : 338,930.13 = 138,150.90 : x
  2. Step 2: Convert to fraction form
    245,587.28/338,930.13 = 138,150.90/x
  3. Step 3: Cross multiply
    245,587.28x = 338,930.13 × 138,150.90
  4. Step 4: Simplify right side
    245,587.28x = 46,823,502,496.62
  5. Step 5: Solve for x
    x = 46,823,502,496.62/245,587.28
  6. Step 6: Final answer
    x = 190,659.31

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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.