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Finding the Fourth Proportional to 288.94, 433.27 and 96.50

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Solution

The fourth proportional to 288.94, 433.27 and 96.50 is: 144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.94 : 433.27 = 96.50 : x
  2. Step 2: Convert to fraction form
    288.94/433.27 = 96.50/x
  3. Step 3: Cross multiply
    288.94x = 433.27 × 96.50
  4. Step 4: Simplify right side
    288.94x = 41,810.56
  5. Step 5: Solve for x
    x = 41,810.56/288.94
  6. Step 6: Final answer
    x = 144.70

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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.