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Finding the Fourth Proportional to 362.32, 499.56 and 315.52

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Solution

The fourth proportional to 362.32, 499.56 and 315.52 is: 435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.32 : 499.56 = 315.52 : x
  2. Step 2: Convert to fraction form
    362.32/499.56 = 315.52/x
  3. Step 3: Cross multiply
    362.32x = 499.56 × 315.52
  4. Step 4: Simplify right side
    362.32x = 157,621.17
  5. Step 5: Solve for x
    x = 157,621.17/362.32
  6. Step 6: Final answer
    x = 435.03

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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.