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Finding the Fourth Proportional to 364.15, 502.50 and 214.79

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Solution

The fourth proportional to 364.15, 502.50 and 214.79 is: 296.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.15 : 502.50 = 214.79 : x
  2. Step 2: Convert to fraction form
    364.15/502.50 = 214.79/x
  3. Step 3: Cross multiply
    364.15x = 502.50 × 214.79
  4. Step 4: Simplify right side
    364.15x = 107,929.46
  5. Step 5: Solve for x
    x = 107,929.46/364.15
  6. Step 6: Final answer
    x = 296.39

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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.