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Finding the Fourth Proportional to 371.62, 558.69 and 303.63

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Solution

The fourth proportional to 371.62, 558.69 and 303.63 is: 456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.62 : 558.69 = 303.63 : x
  2. Step 2: Convert to fraction form
    371.62/558.69 = 303.63/x
  3. Step 3: Cross multiply
    371.62x = 558.69 × 303.63
  4. Step 4: Simplify right side
    371.62x = 169,635.81
  5. Step 5: Solve for x
    x = 169,635.81/371.62
  6. Step 6: Final answer
    x = 456.48

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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.