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Finding the Fourth Proportional to 609.74, 841.17 and 373.61

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Solution

The fourth proportional to 609.74, 841.17 and 373.61 is: 515.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.74 : 841.17 = 373.61 : x
  2. Step 2: Convert to fraction form
    609.74/841.17 = 373.61/x
  3. Step 3: Cross multiply
    609.74x = 841.17 × 373.61
  4. Step 4: Simplify right side
    609.74x = 314,263.45
  5. Step 5: Solve for x
    x = 314,263.45/609.74
  6. Step 6: Final answer
    x = 515.41

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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.