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Finding the Fourth Proportional to 635.42, 953.94 and 632.18

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Solution

The fourth proportional to 635.42, 953.94 and 632.18 is: 949.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.42 : 953.94 = 632.18 : x
  2. Step 2: Convert to fraction form
    635.42/953.94 = 632.18/x
  3. Step 3: Cross multiply
    635.42x = 953.94 × 632.18
  4. Step 4: Simplify right side
    635.42x = 603,061.79
  5. Step 5: Solve for x
    x = 603,061.79/635.42
  6. Step 6: Final answer
    x = 949.08

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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.