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Finding the Fourth Proportional to 889.86, 1,334.75 and 240.62

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Solution

The fourth proportional to 889.86, 1,334.75 and 240.62 is: 360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.86 : 1,334.75 = 240.62 : x
  2. Step 2: Convert to fraction form
    889.86/1,334.75 = 240.62/x
  3. Step 3: Cross multiply
    889.86x = 1,334.75 × 240.62
  4. Step 4: Simplify right side
    889.86x = 321,161.47
  5. Step 5: Solve for x
    x = 321,161.47/889.86
  6. Step 6: Final answer
    x = 360.91

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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.