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Finding the Fourth Proportional to 185,408.81, 255,862.75 and 104,839.21

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Solution

The fourth proportional to 185,408.81, 255,862.75 and 104,839.21 is: 144,677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,408.81 : 255,862.75 = 104,839.21 : x
  2. Step 2: Convert to fraction form
    185,408.81/255,862.75 = 104,839.21/x
  3. Step 3: Cross multiply
    185,408.81x = 255,862.75 × 104,839.21
  4. Step 4: Simplify right side
    185,408.81x = 26,824,448,832.73
  5. Step 5: Solve for x
    x = 26,824,448,832.73/185,408.81
  6. Step 6: Final answer
    x = 144,677.31

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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.