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Finding the Fourth Proportional to 528.17, 727.70 and 362.09

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Solution

The fourth proportional to 528.17, 727.70 and 362.09 is: 498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.17 : 727.70 = 362.09 : x
  2. Step 2: Convert to fraction form
    528.17/727.70 = 362.09/x
  3. Step 3: Cross multiply
    528.17x = 727.70 × 362.09
  4. Step 4: Simplify right side
    528.17x = 263,487.44
  5. Step 5: Solve for x
    x = 263,487.44/528.17
  6. Step 6: Final answer
    x = 498.87

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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.