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Finding the Fourth Proportional to 480.01, 720.08 and 187.46

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Solution

The fourth proportional to 480.01, 720.08 and 187.46 is: 281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.01 : 720.08 = 187.46 : x
  2. Step 2: Convert to fraction form
    480.01/720.08 = 187.46/x
  3. Step 3: Cross multiply
    480.01x = 720.08 × 187.46
  4. Step 4: Simplify right side
    480.01x = 134,981.66
  5. Step 5: Solve for x
    x = 134,981.66/480.01
  6. Step 6: Final answer
    x = 281.21

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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.