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Finding the Fourth Proportional to 277,131.03, 415,696.74 and 66,769.17

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Solution

The fourth proportional to 277,131.03, 415,696.74 and 66,769.17 is: 100,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,131.03 : 415,696.74 = 66,769.17 : x
  2. Step 2: Convert to fraction form
    277,131.03/415,696.74 = 66,769.17/x
  3. Step 3: Cross multiply
    277,131.03x = 415,696.74 × 66,769.17
  4. Step 4: Simplify right side
    277,131.03x = 27,755,726,301.51
  5. Step 5: Solve for x
    x = 27,755,726,301.51/277,131.03
  6. Step 6: Final answer
    x = 100,153.80

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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.