Home / 381,931.38-526,846.02-238,442.31

Finding the Fourth Proportional to 381,931.38, 526,846.02 and 238,442.31

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Solution

The fourth proportional to 381,931.38, 526,846.02 and 238,442.31 is: 328,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,931.38 : 526,846.02 = 238,442.31 : x
  2. Step 2: Convert to fraction form
    381,931.38/526,846.02 = 238,442.31/x
  3. Step 3: Cross multiply
    381,931.38x = 526,846.02 × 238,442.31
  4. Step 4: Simplify right side
    381,931.38x = 125,622,383,104.62
  5. Step 5: Solve for x
    x = 125,622,383,104.62/381,931.38
  6. Step 6: Final answer
    x = 328,913.49

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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.