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Finding the Fourth Proportional to 308,833.80, 463,250.70 and 218,632.20

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Solution

The fourth proportional to 308,833.80, 463,250.70 and 218,632.20 is: 327,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,833.80 : 463,250.70 = 218,632.20 : x
  2. Step 2: Convert to fraction form
    308,833.80/463,250.70 = 218,632.20/x
  3. Step 3: Cross multiply
    308,833.80x = 463,250.70 × 218,632.20
  4. Step 4: Simplify right side
    308,833.80x = 101,281,519,692.54
  5. Step 5: Solve for x
    x = 101,281,519,692.54/308,833.80
  6. Step 6: Final answer
    x = 327,948.30

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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.