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Finding the Fourth Proportional to 591.02, 885.71 and 374.21

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Solution

The fourth proportional to 591.02, 885.71 and 374.21 is: 560.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.02 : 885.71 = 374.21 : x
  2. Step 2: Convert to fraction form
    591.02/885.71 = 374.21/x
  3. Step 3: Cross multiply
    591.02x = 885.71 × 374.21
  4. Step 4: Simplify right side
    591.02x = 331,438.05
  5. Step 5: Solve for x
    x = 331,438.05/591.02
  6. Step 6: Final answer
    x = 560.79

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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.