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Finding the Fourth Proportional to 296.87, 444.79 and 289.69

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Solution

The fourth proportional to 296.87, 444.79 and 289.69 is: 434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.87 : 444.79 = 289.69 : x
  2. Step 2: Convert to fraction form
    296.87/444.79 = 289.69/x
  3. Step 3: Cross multiply
    296.87x = 444.79 × 289.69
  4. Step 4: Simplify right side
    296.87x = 128,852.97
  5. Step 5: Solve for x
    x = 128,852.97/296.87
  6. Step 6: Final answer
    x = 434.05

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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.