Home / 221,475.20-331,994.10-109,063.40

Finding the Fourth Proportional to 221,475.20, 331,994.10 and 109,063.40

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Solution

The fourth proportional to 221,475.20, 331,994.10 and 109,063.40 is: 163,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,475.20 : 331,994.10 = 109,063.40 : x
  2. Step 2: Convert to fraction form
    221,475.20/331,994.10 = 109,063.40/x
  3. Step 3: Cross multiply
    221,475.20x = 331,994.10 × 109,063.40
  4. Step 4: Simplify right side
    221,475.20x = 36,208,405,325.94
  5. Step 5: Solve for x
    x = 36,208,405,325.94/221,475.20
  6. Step 6: Final answer
    x = 163,487.40

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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.