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Finding the Fourth Proportional to 262,995.53, 394,493.29 and 218,654.10

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Solution

The fourth proportional to 262,995.53, 394,493.29 and 218,654.10 is: 327,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,995.53 : 394,493.29 = 218,654.10 : x
  2. Step 2: Convert to fraction form
    262,995.53/394,493.29 = 218,654.10/x
  3. Step 3: Cross multiply
    262,995.53x = 394,493.29 × 218,654.10
  4. Step 4: Simplify right side
    262,995.53x = 86,257,574,734.35
  5. Step 5: Solve for x
    x = 86,257,574,734.35/262,995.53
  6. Step 6: Final answer
    x = 327,981.15

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Similar ratio
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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.