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Finding the Fourth Proportional to 226.83, 313.59 and 153.53

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Solution

The fourth proportional to 226.83, 313.59 and 153.53 is: 212.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.83 : 313.59 = 153.53 : x
  2. Step 2: Convert to fraction form
    226.83/313.59 = 153.53/x
  3. Step 3: Cross multiply
    226.83x = 313.59 × 153.53
  4. Step 4: Simplify right side
    226.83x = 48,145.47
  5. Step 5: Solve for x
    x = 48,145.47/226.83
  6. Step 6: Final answer
    x = 212.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.