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Finding the Fourth Proportional to 633.27, 953.63 and 553.08

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Solution

The fourth proportional to 633.27, 953.63 and 553.08 is: 832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.27 : 953.63 = 553.08 : x
  2. Step 2: Convert to fraction form
    633.27/953.63 = 553.08/x
  3. Step 3: Cross multiply
    633.27x = 953.63 × 553.08
  4. Step 4: Simplify right side
    633.27x = 527,435.06
  5. Step 5: Solve for x
    x = 527,435.06/633.27
  6. Step 6: Final answer
    x = 832.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.