Home / 426,338.67-639,571.19-141,936.33

Finding the Fourth Proportional to 426,338.67, 639,571.19 and 141,936.33

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Solution

The fourth proportional to 426,338.67, 639,571.19 and 141,936.33 is: 212,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,338.67 : 639,571.19 = 141,936.33 : x
  2. Step 2: Convert to fraction form
    426,338.67/639,571.19 = 141,936.33/x
  3. Step 3: Cross multiply
    426,338.67x = 639,571.19 × 141,936.33
  4. Step 4: Simplify right side
    426,338.67x = 90,778,386,772.65
  5. Step 5: Solve for x
    x = 90,778,386,772.65/426,338.67
  6. Step 6: Final answer
    x = 212,925.53

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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.