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Finding the Fourth Proportional to 325,089.34, 448,713.47 and 189,149.55

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Solution

The fourth proportional to 325,089.34, 448,713.47 and 189,149.55 is: 261,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,089.34 : 448,713.47 = 189,149.55 : x
  2. Step 2: Convert to fraction form
    325,089.34/448,713.47 = 189,149.55/x
  3. Step 3: Cross multiply
    325,089.34x = 448,713.47 × 189,149.55
  4. Step 4: Simplify right side
    325,089.34x = 84,873,950,929.44
  5. Step 5: Solve for x
    x = 84,873,950,929.44/325,089.34
  6. Step 6: Final answer
    x = 261,078.85

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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.