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Finding the Fourth Proportional to 353.26, 489.80 and 341.87

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Solution

The fourth proportional to 353.26, 489.80 and 341.87 is: 474.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.26 : 489.80 = 341.87 : x
  2. Step 2: Convert to fraction form
    353.26/489.80 = 341.87/x
  3. Step 3: Cross multiply
    353.26x = 489.80 × 341.87
  4. Step 4: Simplify right side
    353.26x = 167,447.16
  5. Step 5: Solve for x
    x = 167,447.16/353.26
  6. Step 6: Final answer
    x = 474.00

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.