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Finding the Fourth Proportional to 659.33, 909.78 and 364.58

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Solution

The fourth proportional to 659.33, 909.78 and 364.58 is: 503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.33 : 909.78 = 364.58 : x
  2. Step 2: Convert to fraction form
    659.33/909.78 = 364.58/x
  3. Step 3: Cross multiply
    659.33x = 909.78 × 364.58
  4. Step 4: Simplify right side
    659.33x = 331,683.04
  5. Step 5: Solve for x
    x = 331,683.04/659.33
  6. Step 6: Final answer
    x = 503.06

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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.