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Finding the Fourth Proportional to 633.02, 868.10 and 623.30

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Solution

The fourth proportional to 633.02, 868.10 and 623.30 is: 854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.02 : 868.10 = 623.30 : x
  2. Step 2: Convert to fraction form
    633.02/868.10 = 623.30/x
  3. Step 3: Cross multiply
    633.02x = 868.10 × 623.30
  4. Step 4: Simplify right side
    633.02x = 541,079.27
  5. Step 5: Solve for x
    x = 541,079.27/633.02
  6. Step 6: Final answer
    x = 854.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.