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Finding the Fourth Proportional to 220,551.40, 330,827.10 and 200,212.30

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Solution

The fourth proportional to 220,551.40, 330,827.10 and 200,212.30 is: 300,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,551.40 : 330,827.10 = 200,212.30 : x
  2. Step 2: Convert to fraction form
    220,551.40/330,827.10 = 200,212.30/x
  3. Step 3: Cross multiply
    220,551.40x = 330,827.10 × 200,212.30
  4. Step 4: Simplify right side
    220,551.40x = 66,235,654,593.33
  5. Step 5: Solve for x
    x = 66,235,654,593.33/220,551.40
  6. Step 6: Final answer
    x = 300,318.45

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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.