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Finding the Fourth Proportional to 400,011.88, 552,033.54 and 218,713

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Solution

The fourth proportional to 400,011.88, 552,033.54 and 218,713 is: 301,833.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,011.88 : 552,033.54 = 218,713 : x
  2. Step 2: Convert to fraction form
    400,011.88/552,033.54 = 218,713/x
  3. Step 3: Cross multiply
    400,011.88x = 552,033.54 × 218,713
  4. Step 4: Simplify right side
    400,011.88x = 120,736,911,634.02
  5. Step 5: Solve for x
    x = 120,736,911,634.02/400,011.88
  6. Step 6: Final answer
    x = 301,833.31

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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.