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Finding the Fourth Proportional to 355.59, 531.50 and 252.18

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Solution

The fourth proportional to 355.59, 531.50 and 252.18 is: 376.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.59 : 531.50 = 252.18 : x
  2. Step 2: Convert to fraction form
    355.59/531.50 = 252.18/x
  3. Step 3: Cross multiply
    355.59x = 531.50 × 252.18
  4. Step 4: Simplify right side
    355.59x = 134,032.41
  5. Step 5: Solve for x
    x = 134,032.41/355.59
  6. Step 6: Final answer
    x = 376.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.