Home / 219,844.80-329,767.20-143,737.20

Finding the Fourth Proportional to 219,844.80, 329,767.20 and 143,737.20

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Solution

The fourth proportional to 219,844.80, 329,767.20 and 143,737.20 is: 215,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,844.80 : 329,767.20 = 143,737.20 : x
  2. Step 2: Convert to fraction form
    219,844.80/329,767.20 = 143,737.20/x
  3. Step 3: Cross multiply
    219,844.80x = 329,767.20 × 143,737.20
  4. Step 4: Simplify right side
    219,844.80x = 47,399,813,979.84
  5. Step 5: Solve for x
    x = 47,399,813,979.84/219,844.80
  6. Step 6: Final answer
    x = 215,605.80

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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.