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Finding the Fourth Proportional to 468.99, 703.55 and 144.38

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Solution

The fourth proportional to 468.99, 703.55 and 144.38 is: 216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.99 : 703.55 = 144.38 : x
  2. Step 2: Convert to fraction form
    468.99/703.55 = 144.38/x
  3. Step 3: Cross multiply
    468.99x = 703.55 × 144.38
  4. Step 4: Simplify right side
    468.99x = 101,580.67
  5. Step 5: Solve for x
    x = 101,580.67/468.99
  6. Step 6: Final answer
    x = 216.59

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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.