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Finding the Fourth Proportional to 401,500.70, 554,086.47 and 220,220.27

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Solution

The fourth proportional to 401,500.70, 554,086.47 and 220,220.27 is: 303,912.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,500.70 : 554,086.47 = 220,220.27 : x
  2. Step 2: Convert to fraction form
    401,500.70/554,086.47 = 220,220.27/x
  3. Step 3: Cross multiply
    401,500.70x = 554,086.47 × 220,220.27
  4. Step 4: Simplify right side
    401,500.70x = 122,021,072,159.97
  5. Step 5: Solve for x
    x = 122,021,072,159.97/401,500.70
  6. Step 6: Final answer
    x = 303,912.48

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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.