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Finding the Fourth Proportional to 221,634.53, 332,484.60 and 81,382.22

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Solution

The fourth proportional to 221,634.53, 332,484.60 and 81,382.22 is: 122,085.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,634.53 : 332,484.60 = 81,382.22 : x
  2. Step 2: Convert to fraction form
    221,634.53/332,484.60 = 81,382.22/x
  3. Step 3: Cross multiply
    221,634.53x = 332,484.60 × 81,382.22
  4. Step 4: Simplify right side
    221,634.53x = 27,058,334,295.61
  5. Step 5: Solve for x
    x = 27,058,334,295.61/221,634.53
  6. Step 6: Final answer
    x = 122,085.37

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1.5x scale

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.