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Finding the Fourth Proportional to 223,227.77, 307,991.77 and 212,008.46

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Solution

The fourth proportional to 223,227.77, 307,991.77 and 212,008.46 is: 292,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,227.77 : 307,991.77 = 212,008.46 : x
  2. Step 2: Convert to fraction form
    223,227.77/307,991.77 = 212,008.46/x
  3. Step 3: Cross multiply
    223,227.77x = 307,991.77 × 212,008.46
  4. Step 4: Simplify right side
    223,227.77x = 65,296,858,780.39
  5. Step 5: Solve for x
    x = 65,296,858,780.39/223,227.77
  6. Step 6: Final answer
    x = 292,512.26

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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.