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Finding the Fourth Proportional to 591.03, 887.46 and 317.65

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Solution

The fourth proportional to 591.03, 887.46 and 317.65 is: 476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.03 : 887.46 = 317.65 : x
  2. Step 2: Convert to fraction form
    591.03/887.46 = 317.65/x
  3. Step 3: Cross multiply
    591.03x = 887.46 × 317.65
  4. Step 4: Simplify right side
    591.03x = 281,901.67
  5. Step 5: Solve for x
    x = 281,901.67/591.03
  6. Step 6: Final answer
    x = 476.97

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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.