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Finding the Fourth Proportional to 403.28, 601.14 and 377.31

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Solution

The fourth proportional to 403.28, 601.14 and 377.31 is: 562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.28 : 601.14 = 377.31 : x
  2. Step 2: Convert to fraction form
    403.28/601.14 = 377.31/x
  3. Step 3: Cross multiply
    403.28x = 601.14 × 377.31
  4. Step 4: Simplify right side
    403.28x = 226,814.30
  5. Step 5: Solve for x
    x = 226,814.30/403.28
  6. Step 6: Final answer
    x = 562.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.