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Finding the Fourth Proportional to 633.30, 945.36 and 547.19

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Solution

The fourth proportional to 633.30, 945.36 and 547.19 is: 816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.30 : 945.36 = 547.19 : x
  2. Step 2: Convert to fraction form
    633.30/945.36 = 547.19/x
  3. Step 3: Cross multiply
    633.30x = 945.36 × 547.19
  4. Step 4: Simplify right side
    633.30x = 517,288.18
  5. Step 5: Solve for x
    x = 517,288.18/633.30
  6. Step 6: Final answer
    x = 816.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.