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Finding the Fourth Proportional to 609.58, 914.37 and 335.80

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Solution

The fourth proportional to 609.58, 914.37 and 335.80 is: 503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.58 : 914.37 = 335.80 : x
  2. Step 2: Convert to fraction form
    609.58/914.37 = 335.80/x
  3. Step 3: Cross multiply
    609.58x = 914.37 × 335.80
  4. Step 4: Simplify right side
    609.58x = 307,045.45
  5. Step 5: Solve for x
    x = 307,045.45/609.58
  6. Step 6: Final answer
    x = 503.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.