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Finding the Fourth Proportional to 221,111.60, 331,602.60 and 102,754.40

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Solution

The fourth proportional to 221,111.60, 331,602.60 and 102,754.40 is: 154,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,111.60 : 331,602.60 = 102,754.40 : x
  2. Step 2: Convert to fraction form
    221,111.60/331,602.60 = 102,754.40/x
  3. Step 3: Cross multiply
    221,111.60x = 331,602.60 × 102,754.40
  4. Step 4: Simplify right side
    221,111.60x = 34,073,626,201.44
  5. Step 5: Solve for x
    x = 34,073,626,201.44/221,111.60
  6. Step 6: Final answer
    x = 154,101.49

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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.