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Finding the Fourth Proportional to 889.01, 1,334.12 and 369.02

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Solution

The fourth proportional to 889.01, 1,334.12 and 369.02 is: 553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.01 : 1,334.12 = 369.02 : x
  2. Step 2: Convert to fraction form
    889.01/1,334.12 = 369.02/x
  3. Step 3: Cross multiply
    889.01x = 1,334.12 × 369.02
  4. Step 4: Simplify right side
    889.01x = 492,308.45
  5. Step 5: Solve for x
    x = 492,308.45/889.01
  6. Step 6: Final answer
    x = 553.77

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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.