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Finding the Fourth Proportional to 401,501.70, 554,087.85 and 220,221.27

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Solution

The fourth proportional to 401,501.70, 554,087.85 and 220,221.27 is: 303,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,501.70 : 554,087.85 = 220,221.27 : x
  2. Step 2: Convert to fraction form
    401,501.70/554,087.85 = 220,221.27/x
  3. Step 3: Cross multiply
    401,501.70x = 554,087.85 × 220,221.27
  4. Step 4: Simplify right side
    401,501.70x = 122,021,930,018.57
  5. Step 5: Solve for x
    x = 122,021,930,018.57/401,501.70
  6. Step 6: Final answer
    x = 303,913.86

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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.