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Finding the Fourth Proportional to 220,549.40, 330,824.10 and 200,210.30

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Solution

The fourth proportional to 220,549.40, 330,824.10 and 200,210.30 is: 300,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,549.40 : 330,824.10 = 200,210.30 : x
  2. Step 2: Convert to fraction form
    220,549.40/330,824.10 = 200,210.30/x
  3. Step 3: Cross multiply
    220,549.40x = 330,824.10 × 200,210.30
  4. Step 4: Simplify right side
    220,549.40x = 66,234,392,308.23
  5. Step 5: Solve for x
    x = 66,234,392,308.23/220,549.40
  6. Step 6: Final answer
    x = 300,315.45

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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.