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Finding the Fourth Proportional to 609.50, 841.18 and 344.02

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Solution

The fourth proportional to 609.50, 841.18 and 344.02 is: 474.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.50 : 841.18 = 344.02 : x
  2. Step 2: Convert to fraction form
    609.50/841.18 = 344.02/x
  3. Step 3: Cross multiply
    609.50x = 841.18 × 344.02
  4. Step 4: Simplify right side
    609.50x = 289,382.74
  5. Step 5: Solve for x
    x = 289,382.74/609.50
  6. Step 6: Final answer
    x = 474.79

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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.