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Finding the Fourth Proportional to 220,860.90, 330,825.92 and 101,018.78

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Solution

The fourth proportional to 220,860.90, 330,825.92 and 101,018.78 is: 151,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,860.90 : 330,825.92 = 101,018.78 : x
  2. Step 2: Convert to fraction form
    220,860.90/330,825.92 = 101,018.78/x
  3. Step 3: Cross multiply
    220,860.90x = 330,825.92 × 101,018.78
  4. Step 4: Simplify right side
    220,860.90x = 33,419,630,830.78
  5. Step 5: Solve for x
    x = 33,419,630,830.78/220,860.90
  6. Step 6: Final answer
    x = 151,315.29

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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.