Home / 219,453.12-328,786.08-207,643.36

Finding the Fourth Proportional to 219,453.12, 328,786.08 and 207,643.36

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Solution

The fourth proportional to 219,453.12, 328,786.08 and 207,643.36 is: 311,092.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,453.12 : 328,786.08 = 207,643.36 : x
  2. Step 2: Convert to fraction form
    219,453.12/328,786.08 = 207,643.36/x
  3. Step 3: Cross multiply
    219,453.12x = 328,786.08 × 207,643.36
  4. Step 4: Simplify right side
    219,453.12x = 68,270,246,372.43
  5. Step 5: Solve for x
    x = 68,270,246,372.43/219,453.12
  6. Step 6: Final answer
    x = 311,092.62

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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.