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Finding the Fourth Proportional to 635.41, 953.12 and 270.15

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Solution

The fourth proportional to 635.41, 953.12 and 270.15 is: 405.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.41 : 953.12 = 270.15 : x
  2. Step 2: Convert to fraction form
    635.41/953.12 = 270.15/x
  3. Step 3: Cross multiply
    635.41x = 953.12 × 270.15
  4. Step 4: Simplify right side
    635.41x = 257,485.37
  5. Step 5: Solve for x
    x = 257,485.37/635.41
  6. Step 6: Final answer
    x = 405.23

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Double scale
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Similar ratio
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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.