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Finding the Fourth Proportional to 313.67, 469.76 and 183.39

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Solution

The fourth proportional to 313.67, 469.76 and 183.39 is: 274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.67 : 469.76 = 183.39 : x
  2. Step 2: Convert to fraction form
    313.67/469.76 = 183.39/x
  3. Step 3: Cross multiply
    313.67x = 469.76 × 183.39
  4. Step 4: Simplify right side
    313.67x = 86,148.37
  5. Step 5: Solve for x
    x = 86,148.37/313.67
  6. Step 6: Final answer
    x = 274.65

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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.