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Finding the Fourth Proportional to 362.41, 499.80 and 288.60

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Solution

The fourth proportional to 362.41, 499.80 and 288.60 is: 398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.41 : 499.80 = 288.60 : x
  2. Step 2: Convert to fraction form
    362.41/499.80 = 288.60/x
  3. Step 3: Cross multiply
    362.41x = 499.80 × 288.60
  4. Step 4: Simplify right side
    362.41x = 144,241.49
  5. Step 5: Solve for x
    x = 144,241.49/362.41
  6. Step 6: Final answer
    x = 398.01

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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.