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Finding the Fourth Proportional to 360.36, 496.98 and 308.16

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Solution

The fourth proportional to 360.36, 496.98 and 308.16 is: 424.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.36 : 496.98 = 308.16 : x
  2. Step 2: Convert to fraction form
    360.36/496.98 = 308.16/x
  3. Step 3: Cross multiply
    360.36x = 496.98 × 308.16
  4. Step 4: Simplify right side
    360.36x = 153,149.36
  5. Step 5: Solve for x
    x = 153,149.36/360.36
  6. Step 6: Final answer
    x = 424.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.