Home / 245,583.28-338,924.61-138,146.90

Finding the Fourth Proportional to 245,583.28, 338,924.61 and 138,146.90

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Solution

The fourth proportional to 245,583.28, 338,924.61 and 138,146.90 is: 190,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,583.28 : 338,924.61 = 138,146.90 : x
  2. Step 2: Convert to fraction form
    245,583.28/338,924.61 = 138,146.90/x
  3. Step 3: Cross multiply
    245,583.28x = 338,924.61 × 138,146.90
  4. Step 4: Simplify right side
    245,583.28x = 46,821,383,514.47
  5. Step 5: Solve for x
    x = 46,821,383,514.47/245,583.28
  6. Step 6: Final answer
    x = 190,653.80

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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.