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Finding the Fourth Proportional to 659.49, 910.12 and 364.79

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Solution

The fourth proportional to 659.49, 910.12 and 364.79 is: 503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.49 : 910.12 = 364.79 : x
  2. Step 2: Convert to fraction form
    659.49/910.12 = 364.79/x
  3. Step 3: Cross multiply
    659.49x = 910.12 × 364.79
  4. Step 4: Simplify right side
    659.49x = 331,999.60
  5. Step 5: Solve for x
    x = 331,999.60/659.49
  6. Step 6: Final answer
    x = 503.42

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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.