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Finding the Fourth Proportional to 407.12, 610.36 and 363.28

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Solution

The fourth proportional to 407.12, 610.36 and 363.28 is: 544.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.12 : 610.36 = 363.28 : x
  2. Step 2: Convert to fraction form
    407.12/610.36 = 363.28/x
  3. Step 3: Cross multiply
    407.12x = 610.36 × 363.28
  4. Step 4: Simplify right side
    407.12x = 221,731.58
  5. Step 5: Solve for x
    x = 221,731.58/407.12
  6. Step 6: Final answer
    x = 544.63

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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.