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Finding the Fourth Proportional to 382.15, 527.10 and 369.46

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Solution

The fourth proportional to 382.15, 527.10 and 369.46 is: 509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.15 : 527.10 = 369.46 : x
  2. Step 2: Convert to fraction form
    382.15/527.10 = 369.46/x
  3. Step 3: Cross multiply
    382.15x = 527.10 × 369.46
  4. Step 4: Simplify right side
    382.15x = 194,742.37
  5. Step 5: Solve for x
    x = 194,742.37/382.15
  6. Step 6: Final answer
    x = 509.60

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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.