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Finding the Fourth Proportional to 323,552.20, 485,328.30 and 165,728.20

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Solution

The fourth proportional to 323,552.20, 485,328.30 and 165,728.20 is: 248,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,552.20 : 485,328.30 = 165,728.20 : x
  2. Step 2: Convert to fraction form
    323,552.20/485,328.30 = 165,728.20/x
  3. Step 3: Cross multiply
    323,552.20x = 485,328.30 × 165,728.20
  4. Step 4: Simplify right side
    323,552.20x = 80,432,585,568.06
  5. Step 5: Solve for x
    x = 80,432,585,568.06/323,552.20
  6. Step 6: Final answer
    x = 248,592.30

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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.