Home / 245,247.22-338,442.33-143,278.48

Finding the Fourth Proportional to 245,247.22, 338,442.33 and 143,278.48

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Solution

The fourth proportional to 245,247.22, 338,442.33 and 143,278.48 is: 197,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,247.22 : 338,442.33 = 143,278.48 : x
  2. Step 2: Convert to fraction form
    245,247.22/338,442.33 = 143,278.48/x
  3. Step 3: Cross multiply
    245,247.22x = 338,442.33 × 143,278.48
  4. Step 4: Simplify right side
    245,247.22x = 48,491,502,610.06
  5. Step 5: Solve for x
    x = 48,491,502,610.06/245,247.22
  6. Step 6: Final answer
    x = 197,724.98

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1.5x scale

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.