Home / 221,425.40-333,012.90-198,680.60

Finding the Fourth Proportional to 221,425.40, 333,012.90 and 198,680.60

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Solution

The fourth proportional to 221,425.40, 333,012.90 and 198,680.60 is: 298,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,425.40 : 333,012.90 = 198,680.60 : x
  2. Step 2: Convert to fraction form
    221,425.40/333,012.90 = 198,680.60/x
  3. Step 3: Cross multiply
    221,425.40x = 333,012.90 × 198,680.60
  4. Step 4: Simplify right side
    221,425.40x = 66,163,202,779.74
  5. Step 5: Solve for x
    x = 66,163,202,779.74/221,425.40
  6. Step 6: Final answer
    x = 298,805.84

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1.5x scale

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.