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Finding the Fourth Proportional to 338,605.55, 507,975.08 and 125,375.33

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Solution

The fourth proportional to 338,605.55, 507,975.08 and 125,375.33 is: 188,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,605.55 : 507,975.08 = 125,375.33 : x
  2. Step 2: Convert to fraction form
    338,605.55/507,975.08 = 125,375.33/x
  3. Step 3: Cross multiply
    338,605.55x = 507,975.08 × 125,375.33
  4. Step 4: Simplify right side
    338,605.55x = 63,687,543,286.78
  5. Step 5: Solve for x
    x = 63,687,543,286.78/338,605.55
  6. Step 6: Final answer
    x = 188,087.71

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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.