Home / 445,837.84-668,241.75-205,449.10

Finding the Fourth Proportional to 445,837.84, 668,241.75 and 205,449.10

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Solution

The fourth proportional to 445,837.84, 668,241.75 and 205,449.10 is: 307,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,837.84 : 668,241.75 = 205,449.10 : x
  2. Step 2: Convert to fraction form
    445,837.84/668,241.75 = 205,449.10/x
  3. Step 3: Cross multiply
    445,837.84x = 668,241.75 × 205,449.10
  4. Step 4: Simplify right side
    445,837.84x = 137,289,666,119.93
  5. Step 5: Solve for x
    x = 137,289,666,119.93/445,837.84
  6. Step 6: Final answer
    x = 307,936.33

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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.