Home / 221,018.96-331,526-132,297.20

Finding the Fourth Proportional to 221,018.96, 331,526 and 132,297.20

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Solution

The fourth proportional to 221,018.96, 331,526 and 132,297.20 is: 198,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,018.96 : 331,526 = 132,297.20 : x
  2. Step 2: Convert to fraction form
    221,018.96/331,526 = 132,297.20/x
  3. Step 3: Cross multiply
    221,018.96x = 331,526 × 132,297.20
  4. Step 4: Simplify right side
    221,018.96x = 43,859,961,527.20
  5. Step 5: Solve for x
    x = 43,859,961,527.20/221,018.96
  6. Step 6: Final answer
    x = 198,444.34

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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.