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Finding the Fourth Proportional to 494.19, 741.03 and 263.20

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Solution

The fourth proportional to 494.19, 741.03 and 263.20 is: 394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.19 : 741.03 = 263.20 : x
  2. Step 2: Convert to fraction form
    494.19/741.03 = 263.20/x
  3. Step 3: Cross multiply
    494.19x = 741.03 × 263.20
  4. Step 4: Simplify right side
    494.19x = 195,039.10
  5. Step 5: Solve for x
    x = 195,039.10/494.19
  6. Step 6: Final answer
    x = 394.66

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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.