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Finding the Fourth Proportional to 658.02, 907.97 and 378.27

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Solution

The fourth proportional to 658.02, 907.97 and 378.27 is: 521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.02 : 907.97 = 378.27 : x
  2. Step 2: Convert to fraction form
    658.02/907.97 = 378.27/x
  3. Step 3: Cross multiply
    658.02x = 907.97 × 378.27
  4. Step 4: Simplify right side
    658.02x = 343,457.81
  5. Step 5: Solve for x
    x = 343,457.81/658.02
  6. Step 6: Final answer
    x = 521.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.