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Finding the Fourth Proportional to 435.90, 652.89 and 252.84

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Solution

The fourth proportional to 435.90, 652.89 and 252.84 is: 378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.90 : 652.89 = 252.84 : x
  2. Step 2: Convert to fraction form
    435.90/652.89 = 252.84/x
  3. Step 3: Cross multiply
    435.90x = 652.89 × 252.84
  4. Step 4: Simplify right side
    435.90x = 165,076.71
  5. Step 5: Solve for x
    x = 165,076.71/435.90
  6. Step 6: Final answer
    x = 378.70

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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.