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Finding the Fourth Proportional to 356.28, 532.11 and 302.28

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Solution

The fourth proportional to 356.28, 532.11 and 302.28 is: 451.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.28 : 532.11 = 302.28 : x
  2. Step 2: Convert to fraction form
    356.28/532.11 = 302.28/x
  3. Step 3: Cross multiply
    356.28x = 532.11 × 302.28
  4. Step 4: Simplify right side
    356.28x = 160,846.21
  5. Step 5: Solve for x
    x = 160,846.21/356.28
  6. Step 6: Final answer
    x = 451.46

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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.