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Finding the Fourth Proportional to 220,415.40, 330,185.70 and 149,556.60

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Solution

The fourth proportional to 220,415.40, 330,185.70 and 149,556.60 is: 224,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,415.40 : 330,185.70 = 149,556.60 : x
  2. Step 2: Convert to fraction form
    220,415.40/330,185.70 = 149,556.60/x
  3. Step 3: Cross multiply
    220,415.40x = 330,185.70 × 149,556.60
  4. Step 4: Simplify right side
    220,415.40x = 49,381,450,660.62
  5. Step 5: Solve for x
    x = 49,381,450,660.62/220,415.40
  6. Step 6: Final answer
    x = 224,038.11

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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.