Home / 445,198.84-667,839.66-145,681.36

Finding the Fourth Proportional to 445,198.84, 667,839.66 and 145,681.36

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Solution

The fourth proportional to 445,198.84, 667,839.66 and 145,681.36 is: 218,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,198.84 : 667,839.66 = 145,681.36 : x
  2. Step 2: Convert to fraction form
    445,198.84/667,839.66 = 145,681.36/x
  3. Step 3: Cross multiply
    445,198.84x = 667,839.66 × 145,681.36
  4. Step 4: Simplify right side
    445,198.84x = 97,291,789,930.74
  5. Step 5: Solve for x
    x = 97,291,789,930.74/445,198.84
  6. Step 6: Final answer
    x = 218,535.59

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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.