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Finding the Fourth Proportional to 591.87, 888.21 and 303.51

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Solution

The fourth proportional to 591.87, 888.21 and 303.51 is: 455.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.87 : 888.21 = 303.51 : x
  2. Step 2: Convert to fraction form
    591.87/888.21 = 303.51/x
  3. Step 3: Cross multiply
    591.87x = 888.21 × 303.51
  4. Step 4: Simplify right side
    591.87x = 269,580.62
  5. Step 5: Solve for x
    x = 269,580.62/591.87
  6. Step 6: Final answer
    x = 455.47

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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.