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Finding the Fourth Proportional to 221,254.64, 331,883.90 and 71,494.96

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Solution

The fourth proportional to 221,254.64, 331,883.90 and 71,494.96 is: 107,243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,254.64 : 331,883.90 = 71,494.96 : x
  2. Step 2: Convert to fraction form
    221,254.64/331,883.90 = 71,494.96/x
  3. Step 3: Cross multiply
    221,254.64x = 331,883.90 × 71,494.96
  4. Step 4: Simplify right side
    221,254.64x = 23,728,026,155.14
  5. Step 5: Solve for x
    x = 23,728,026,155.14/221,254.64
  6. Step 6: Final answer
    x = 107,243.07

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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.