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Finding the Fourth Proportional to 463.02, 694.18 and 280.37

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Solution

The fourth proportional to 463.02, 694.18 and 280.37 is: 420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.02 : 694.18 = 280.37 : x
  2. Step 2: Convert to fraction form
    463.02/694.18 = 280.37/x
  3. Step 3: Cross multiply
    463.02x = 694.18 × 280.37
  4. Step 4: Simplify right side
    463.02x = 194,623.07
  5. Step 5: Solve for x
    x = 194,623.07/463.02
  6. Step 6: Final answer
    x = 420.33

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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.