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Finding the Fourth Proportional to 441.35, 610.23 and 386.69

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Solution

The fourth proportional to 441.35, 610.23 and 386.69 is: 534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.35 : 610.23 = 386.69 : x
  2. Step 2: Convert to fraction form
    441.35/610.23 = 386.69/x
  3. Step 3: Cross multiply
    441.35x = 610.23 × 386.69
  4. Step 4: Simplify right side
    441.35x = 235,969.84
  5. Step 5: Solve for x
    x = 235,969.84/441.35
  6. Step 6: Final answer
    x = 534.65

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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.