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Finding the Fourth Proportional to 306,351.31, 422,702.22 and 179,002.30

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Solution

The fourth proportional to 306,351.31, 422,702.22 and 179,002.30 is: 246,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,351.31 : 422,702.22 = 179,002.30 : x
  2. Step 2: Convert to fraction form
    306,351.31/422,702.22 = 179,002.30/x
  3. Step 3: Cross multiply
    306,351.31x = 422,702.22 × 179,002.30
  4. Step 4: Simplify right side
    306,351.31x = 75,664,669,595.11
  5. Step 5: Solve for x
    x = 75,664,669,595.11/306,351.31
  6. Step 6: Final answer
    x = 246,986.60

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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.