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Finding the Fourth Proportional to 362.15, 499.27 and 283.15

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Solution

The fourth proportional to 362.15, 499.27 and 283.15 is: 390.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.15 : 499.27 = 283.15 : x
  2. Step 2: Convert to fraction form
    362.15/499.27 = 283.15/x
  3. Step 3: Cross multiply
    362.15x = 499.27 × 283.15
  4. Step 4: Simplify right side
    362.15x = 141,370.95
  5. Step 5: Solve for x
    x = 141,370.95/362.15
  6. Step 6: Final answer
    x = 390.37

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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.