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Finding the Fourth Proportional to 635.25, 953.15 and 342.41

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Solution

The fourth proportional to 635.25, 953.15 and 342.41 is: 513.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.25 : 953.15 = 342.41 : x
  2. Step 2: Convert to fraction form
    635.25/953.15 = 342.41/x
  3. Step 3: Cross multiply
    635.25x = 953.15 × 342.41
  4. Step 4: Simplify right side
    635.25x = 326,368.90
  5. Step 5: Solve for x
    x = 326,368.90/635.25
  6. Step 6: Final answer
    x = 513.77

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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.