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Finding the Fourth Proportional to 315.84, 435.82 and 183.03

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Solution

The fourth proportional to 315.84, 435.82 and 183.03 is: 252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.84 : 435.82 = 183.03 : x
  2. Step 2: Convert to fraction form
    315.84/435.82 = 183.03/x
  3. Step 3: Cross multiply
    315.84x = 435.82 × 183.03
  4. Step 4: Simplify right side
    315.84x = 79,768.13
  5. Step 5: Solve for x
    x = 79,768.13/315.84
  6. Step 6: Final answer
    x = 252.56

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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.