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Finding the Fourth Proportional to 362.12, 499.50 and 288.41

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Solution

The fourth proportional to 362.12, 499.50 and 288.41 is: 397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.12 : 499.50 = 288.41 : x
  2. Step 2: Convert to fraction form
    362.12/499.50 = 288.41/x
  3. Step 3: Cross multiply
    362.12x = 499.50 × 288.41
  4. Step 4: Simplify right side
    362.12x = 144,058.30
  5. Step 5: Solve for x
    x = 144,058.30/362.12
  6. Step 6: Final answer
    x = 397.82

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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.