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Finding the Fourth Proportional to 179,456.80, 269,185.20 and 137,466.40

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Solution

The fourth proportional to 179,456.80, 269,185.20 and 137,466.40 is: 206,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,456.80 : 269,185.20 = 137,466.40 : x
  2. Step 2: Convert to fraction form
    179,456.80/269,185.20 = 137,466.40/x
  3. Step 3: Cross multiply
    179,456.80x = 269,185.20 × 137,466.40
  4. Step 4: Simplify right side
    179,456.80x = 37,003,920,377.28
  5. Step 5: Solve for x
    x = 37,003,920,377.28/179,456.80
  6. Step 6: Final answer
    x = 206,199.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.