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Finding the Fourth Proportional to 262,489.40, 393,734.10 and 162,324.80

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Solution

The fourth proportional to 262,489.40, 393,734.10 and 162,324.80 is: 243,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,489.40 : 393,734.10 = 162,324.80 : x
  2. Step 2: Convert to fraction form
    262,489.40/393,734.10 = 162,324.80/x
  3. Step 3: Cross multiply
    262,489.40x = 393,734.10 × 162,324.80
  4. Step 4: Simplify right side
    262,489.40x = 63,912,809,035.68
  5. Step 5: Solve for x
    x = 63,912,809,035.68/262,489.40
  6. Step 6: Final answer
    x = 243,487.20

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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.