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Finding the Fourth Proportional to 400,179.72, 552,236.27 and 218,887.73

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Solution

The fourth proportional to 400,179.72, 552,236.27 and 218,887.73 is: 302,058.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,179.72 : 552,236.27 = 218,887.73 : x
  2. Step 2: Convert to fraction form
    400,179.72/552,236.27 = 218,887.73/x
  3. Step 3: Cross multiply
    400,179.72x = 552,236.27 × 218,887.73
  4. Step 4: Simplify right side
    400,179.72x = 120,877,743,010.48
  5. Step 5: Solve for x
    x = 120,877,743,010.48/400,179.72
  6. Step 6: Final answer
    x = 302,058.64

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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.