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Finding the Fourth Proportional to 635.05, 952.53 and 172.86

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Solution

The fourth proportional to 635.05, 952.53 and 172.86 is: 259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.05 : 952.53 = 172.86 : x
  2. Step 2: Convert to fraction form
    635.05/952.53 = 172.86/x
  3. Step 3: Cross multiply
    635.05x = 952.53 × 172.86
  4. Step 4: Simplify right side
    635.05x = 164,654.34
  5. Step 5: Solve for x
    x = 164,654.34/635.05
  6. Step 6: Final answer
    x = 259.28

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Double scale
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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.