Home / 221,405.40-331,616.03-171,323.10

Finding the Fourth Proportional to 221,405.40, 331,616.03 and 171,323.10

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Solution

The fourth proportional to 221,405.40, 331,616.03 and 171,323.10 is: 256,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,405.40 : 331,616.03 = 171,323.10 : x
  2. Step 2: Convert to fraction form
    221,405.40/331,616.03 = 171,323.10/x
  3. Step 3: Cross multiply
    221,405.40x = 331,616.03 × 171,323.10
  4. Step 4: Simplify right side
    221,405.40x = 56,813,485,412.68
  5. Step 5: Solve for x
    x = 56,813,485,412.68/221,405.40
  6. Step 6: Final answer
    x = 256,603.88

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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.