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Finding the Fourth Proportional to 364.12, 502.60 and 233.20

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Solution

The fourth proportional to 364.12, 502.60 and 233.20 is: 321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.12 : 502.60 = 233.20 : x
  2. Step 2: Convert to fraction form
    364.12/502.60 = 233.20/x
  3. Step 3: Cross multiply
    364.12x = 502.60 × 233.20
  4. Step 4: Simplify right side
    364.12x = 117,206.32
  5. Step 5: Solve for x
    x = 117,206.32/364.12
  6. Step 6: Final answer
    x = 321.89

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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.