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Finding the Fourth Proportional to 220,100.10, 330,150.15 and 131,307.90

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Solution

The fourth proportional to 220,100.10, 330,150.15 and 131,307.90 is: 196,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,100.10 : 330,150.15 = 131,307.90 : x
  2. Step 2: Convert to fraction form
    220,100.10/330,150.15 = 131,307.90/x
  3. Step 3: Cross multiply
    220,100.10x = 330,150.15 × 131,307.90
  4. Step 4: Simplify right side
    220,100.10x = 43,351,322,881.19
  5. Step 5: Solve for x
    x = 43,351,322,881.19/220,100.10
  6. Step 6: Final answer
    x = 196,961.85

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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.