Home / 221,424.90-333,012.15-198,680.10

Finding the Fourth Proportional to 221,424.90, 333,012.15 and 198,680.10

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Solution

The fourth proportional to 221,424.90, 333,012.15 and 198,680.10 is: 298,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,424.90 : 333,012.15 = 198,680.10 : x
  2. Step 2: Convert to fraction form
    221,424.90/333,012.15 = 198,680.10/x
  3. Step 3: Cross multiply
    221,424.90x = 333,012.15 × 198,680.10
  4. Step 4: Simplify right side
    221,424.90x = 66,162,887,263.22
  5. Step 5: Solve for x
    x = 66,162,887,263.22/221,424.90
  6. Step 6: Final answer
    x = 298,805.09

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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.