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Finding the Fourth Proportional to 376.77, 564.99 and 145.48

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Solution

The fourth proportional to 376.77, 564.99 and 145.48 is: 218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.77 : 564.99 = 145.48 : x
  2. Step 2: Convert to fraction form
    376.77/564.99 = 145.48/x
  3. Step 3: Cross multiply
    376.77x = 564.99 × 145.48
  4. Step 4: Simplify right side
    376.77x = 82,194.91
  5. Step 5: Solve for x
    x = 82,194.91/376.77
  6. Step 6: Final answer
    x = 218.16

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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.