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Finding the Fourth Proportional to 609.68, 840.89 and 373.37

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Solution

The fourth proportional to 609.68, 840.89 and 373.37 is: 514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.68 : 840.89 = 373.37 : x
  2. Step 2: Convert to fraction form
    609.68/840.89 = 373.37/x
  3. Step 3: Cross multiply
    609.68x = 840.89 × 373.37
  4. Step 4: Simplify right side
    609.68x = 313,957.03
  5. Step 5: Solve for x
    x = 313,957.03/609.68
  6. Step 6: Final answer
    x = 514.96

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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.