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Finding the Fourth Proportional to 313.52, 469.84 and 151.16

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Solution

The fourth proportional to 313.52, 469.84 and 151.16 is: 226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.52 : 469.84 = 151.16 : x
  2. Step 2: Convert to fraction form
    313.52/469.84 = 151.16/x
  3. Step 3: Cross multiply
    313.52x = 469.84 × 151.16
  4. Step 4: Simplify right side
    313.52x = 71,021.01
  5. Step 5: Solve for x
    x = 71,021.01/313.52
  6. Step 6: Final answer
    x = 226.53

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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.