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Finding the Fourth Proportional to 889.39, 1,333.97 and 240.18

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Solution

The fourth proportional to 889.39, 1,333.97 and 240.18 is: 360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.39 : 1,333.97 = 240.18 : x
  2. Step 2: Convert to fraction form
    889.39/1,333.97 = 240.18/x
  3. Step 3: Cross multiply
    889.39x = 1,333.97 × 240.18
  4. Step 4: Simplify right side
    889.39x = 320,392.91
  5. Step 5: Solve for x
    x = 320,392.91/889.39
  6. Step 6: Final answer
    x = 360.24

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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.