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Finding the Fourth Proportional to 322.70, 483.81 and 151.50

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Solution

The fourth proportional to 322.70, 483.81 and 151.50 is: 227.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.70 : 483.81 = 151.50 : x
  2. Step 2: Convert to fraction form
    322.70/483.81 = 151.50/x
  3. Step 3: Cross multiply
    322.70x = 483.81 × 151.50
  4. Step 4: Simplify right side
    322.70x = 73,297.22
  5. Step 5: Solve for x
    x = 73,297.22/322.70
  6. Step 6: Final answer
    x = 227.14

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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.