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Finding the Fourth Proportional to 294.64, 444.31 and 289.18

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Solution

The fourth proportional to 294.64, 444.31 and 289.18 is: 436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.64 : 444.31 = 289.18 : x
  2. Step 2: Convert to fraction form
    294.64/444.31 = 289.18/x
  3. Step 3: Cross multiply
    294.64x = 444.31 × 289.18
  4. Step 4: Simplify right side
    294.64x = 128,485.57
  5. Step 5: Solve for x
    x = 128,485.57/294.64
  6. Step 6: Final answer
    x = 436.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.