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Finding the Fourth Proportional to 367.77, 507.50 and 218.39

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Solution

The fourth proportional to 367.77, 507.50 and 218.39 is: 301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.77 : 507.50 = 218.39 : x
  2. Step 2: Convert to fraction form
    367.77/507.50 = 218.39/x
  3. Step 3: Cross multiply
    367.77x = 507.50 × 218.39
  4. Step 4: Simplify right side
    367.77x = 110,830.39
  5. Step 5: Solve for x
    x = 110,830.39/367.77
  6. Step 6: Final answer
    x = 301.36

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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.