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Finding the Fourth Proportional to 910.33, 1,365.41 and 252.18

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Solution

The fourth proportional to 910.33, 1,365.41 and 252.18 is: 378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.33 : 1,365.41 = 252.18 : x
  2. Step 2: Convert to fraction form
    910.33/1,365.41 = 252.18/x
  3. Step 3: Cross multiply
    910.33x = 1,365.41 × 252.18
  4. Step 4: Simplify right side
    910.33x = 344,329.72
  5. Step 5: Solve for x
    x = 344,329.72/910.33
  6. Step 6: Final answer
    x = 378.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.