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Finding the Fourth Proportional to 658.19, 908.35 and 374.63

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Solution

The fourth proportional to 658.19, 908.35 and 374.63 is: 517.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.19 : 908.35 = 374.63 : x
  2. Step 2: Convert to fraction form
    658.19/908.35 = 374.63/x
  3. Step 3: Cross multiply
    658.19x = 908.35 × 374.63
  4. Step 4: Simplify right side
    658.19x = 340,289.68
  5. Step 5: Solve for x
    x = 340,289.68/658.19
  6. Step 6: Final answer
    x = 517.01

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