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Finding the Fourth Proportional to 400,597.88, 552,825.09 and 221,749.88

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Solution

The fourth proportional to 400,597.88, 552,825.09 and 221,749.88 is: 306,014.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,597.88 : 552,825.09 = 221,749.88 : x
  2. Step 2: Convert to fraction form
    400,597.88/552,825.09 = 221,749.88/x
  3. Step 3: Cross multiply
    400,597.88x = 552,825.09 × 221,749.88
  4. Step 4: Simplify right side
    400,597.88x = 122,588,894,604.36
  5. Step 5: Solve for x
    x = 122,588,894,604.36/400,597.88
  6. Step 6: Final answer
    x = 306,014.84

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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.