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Finding the Fourth Proportional to 294.23, 440.61 and 289.22

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Solution

The fourth proportional to 294.23, 440.61 and 289.22 is: 433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.23 : 440.61 = 289.22 : x
  2. Step 2: Convert to fraction form
    294.23/440.61 = 289.22/x
  3. Step 3: Cross multiply
    294.23x = 440.61 × 289.22
  4. Step 4: Simplify right side
    294.23x = 127,431.02
  5. Step 5: Solve for x
    x = 127,431.02/294.23
  6. Step 6: Final answer
    x = 433.11

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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.