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Finding the Fourth Proportional to 362.56, 498.26 and 284.80

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Solution

The fourth proportional to 362.56, 498.26 and 284.80 is: 391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.56 : 498.26 = 284.80 : x
  2. Step 2: Convert to fraction form
    362.56/498.26 = 284.80/x
  3. Step 3: Cross multiply
    362.56x = 498.26 × 284.80
  4. Step 4: Simplify right side
    362.56x = 141,904.45
  5. Step 5: Solve for x
    x = 141,904.45/362.56
  6. Step 6: Final answer
    x = 391.40

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.