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Finding the Fourth Proportional to 445.24, 614.14 and 339.94

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Solution

The fourth proportional to 445.24, 614.14 and 339.94 is: 468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.24 : 614.14 = 339.94 : x
  2. Step 2: Convert to fraction form
    445.24/614.14 = 339.94/x
  3. Step 3: Cross multiply
    445.24x = 614.14 × 339.94
  4. Step 4: Simplify right side
    445.24x = 208,770.75
  5. Step 5: Solve for x
    x = 208,770.75/445.24
  6. Step 6: Final answer
    x = 468.89

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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.