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Finding the Fourth Proportional to 221,093.46, 305,071.62 and 124,284.42

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Solution

The fourth proportional to 221,093.46, 305,071.62 and 124,284.42 is: 171,491.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,093.46 : 305,071.62 = 124,284.42 : x
  2. Step 2: Convert to fraction form
    221,093.46/305,071.62 = 124,284.42/x
  3. Step 3: Cross multiply
    221,093.46x = 305,071.62 × 124,284.42
  4. Step 4: Simplify right side
    221,093.46x = 37,915,649,350.16
  5. Step 5: Solve for x
    x = 37,915,649,350.16/221,093.46
  6. Step 6: Final answer
    x = 171,491.50

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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.