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Finding the Fourth Proportional to 480.50, 720.93 and 191.96

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Solution

The fourth proportional to 480.50, 720.93 and 191.96 is: 288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.50 : 720.93 = 191.96 : x
  2. Step 2: Convert to fraction form
    480.50/720.93 = 191.96/x
  3. Step 3: Cross multiply
    480.50x = 720.93 × 191.96
  4. Step 4: Simplify right side
    480.50x = 138,389.72
  5. Step 5: Solve for x
    x = 138,389.72/480.50
  6. Step 6: Final answer
    x = 288.01

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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.