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Finding the Fourth Proportional to 609.36, 841.14 and 376.50

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Solution

The fourth proportional to 609.36, 841.14 and 376.50 is: 519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.36 : 841.14 = 376.50 : x
  2. Step 2: Convert to fraction form
    609.36/841.14 = 376.50/x
  3. Step 3: Cross multiply
    609.36x = 841.14 × 376.50
  4. Step 4: Simplify right side
    609.36x = 316,689.21
  5. Step 5: Solve for x
    x = 316,689.21/609.36
  6. Step 6: Final answer
    x = 519.71

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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.