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Finding the Fourth Proportional to 325,275.09, 488,471 and 199,653

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Solution

The fourth proportional to 325,275.09, 488,471 and 199,653 is: 299,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,275.09 : 488,471 = 199,653 : x
  2. Step 2: Convert to fraction form
    325,275.09/488,471 = 199,653/x
  3. Step 3: Cross multiply
    325,275.09x = 488,471 × 199,653
  4. Step 4: Simplify right side
    325,275.09x = 97,524,700,563
  5. Step 5: Solve for x
    x = 97,524,700,563/325,275.09
  6. Step 6: Final answer
    x = 299,822.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.