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Finding the Fourth Proportional to 860.33, 1,290.49 and 244.04

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Solution

The fourth proportional to 860.33, 1,290.49 and 244.04 is: 366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    860.33 : 1,290.49 = 244.04 : x
  2. Step 2: Convert to fraction form
    860.33/1,290.49 = 244.04/x
  3. Step 3: Cross multiply
    860.33x = 1,290.49 × 244.04
  4. Step 4: Simplify right side
    860.33x = 314,924.12
  5. Step 5: Solve for x
    x = 314,924.12/860.33
  6. Step 6: Final answer
    x = 366.05

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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.