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Finding the Fourth Proportional to 637.10, 955.70 and 252.26

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Solution

The fourth proportional to 637.10, 955.70 and 252.26 is: 378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.10 : 955.70 = 252.26 : x
  2. Step 2: Convert to fraction form
    637.10/955.70 = 252.26/x
  3. Step 3: Cross multiply
    637.10x = 955.70 × 252.26
  4. Step 4: Simplify right side
    637.10x = 241,084.88
  5. Step 5: Solve for x
    x = 241,084.88/637.10
  6. Step 6: Final answer
    x = 378.41

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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.