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Finding the Fourth Proportional to 591.90, 887.85 and 303.42

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Solution

The fourth proportional to 591.90, 887.85 and 303.42 is: 455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.90 : 887.85 = 303.42 : x
  2. Step 2: Convert to fraction form
    591.90/887.85 = 303.42/x
  3. Step 3: Cross multiply
    591.90x = 887.85 × 303.42
  4. Step 4: Simplify right side
    591.90x = 269,391.45
  5. Step 5: Solve for x
    x = 269,391.45/591.90
  6. Step 6: Final answer
    x = 455.13

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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.