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Finding the Fourth Proportional to 453,993.98, 680,989.14 and 138,449.97

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Solution

The fourth proportional to 453,993.98, 680,989.14 and 138,449.97 is: 207,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,993.98 : 680,989.14 = 138,449.97 : x
  2. Step 2: Convert to fraction form
    453,993.98/680,989.14 = 138,449.97/x
  3. Step 3: Cross multiply
    453,993.98x = 680,989.14 × 138,449.97
  4. Step 4: Simplify right side
    453,993.98x = 94,282,926,003.33
  5. Step 5: Solve for x
    x = 94,282,926,003.33/453,993.98
  6. Step 6: Final answer
    x = 207,674.40

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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.