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Finding the Fourth Proportional to 889.45, 1,334.25 and 240.19

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Solution

The fourth proportional to 889.45, 1,334.25 and 240.19 is: 360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.45 : 1,334.25 = 240.19 : x
  2. Step 2: Convert to fraction form
    889.45/1,334.25 = 240.19/x
  3. Step 3: Cross multiply
    889.45x = 1,334.25 × 240.19
  4. Step 4: Simplify right side
    889.45x = 320,470.17
  5. Step 5: Solve for x
    x = 320,470.17/889.45
  6. Step 6: Final answer
    x = 360.30

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Double scale
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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.