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Finding the Fourth Proportional to 220,564.90, 330,847.35 and 200,225.80

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Solution

The fourth proportional to 220,564.90, 330,847.35 and 200,225.80 is: 300,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,564.90 : 330,847.35 = 200,225.80 : x
  2. Step 2: Convert to fraction form
    220,564.90/330,847.35 = 200,225.80/x
  3. Step 3: Cross multiply
    220,564.90x = 330,847.35 × 200,225.80
  4. Step 4: Simplify right side
    220,564.90x = 66,244,175,331.63
  5. Step 5: Solve for x
    x = 66,244,175,331.63/220,564.90
  6. Step 6: Final answer
    x = 300,338.70

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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.