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Finding the Fourth Proportional to 400,133.28, 552,163.46 and 218,809.97

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Solution

The fourth proportional to 400,133.28, 552,163.46 and 218,809.97 is: 301,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,133.28 : 552,163.46 = 218,809.97 : x
  2. Step 2: Convert to fraction form
    400,133.28/552,163.46 = 218,809.97/x
  3. Step 3: Cross multiply
    400,133.28x = 552,163.46 × 218,809.97
  4. Step 4: Simplify right side
    400,133.28x = 120,818,866,262.83
  5. Step 5: Solve for x
    x = 120,818,866,262.83/400,133.28
  6. Step 6: Final answer
    x = 301,946.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.