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Finding the Fourth Proportional to 445,032.94, 667,613.03 and 137,311

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Solution

The fourth proportional to 445,032.94, 667,613.03 and 137,311 is: 205,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,032.94 : 667,613.03 = 137,311 : x
  2. Step 2: Convert to fraction form
    445,032.94/667,613.03 = 137,311/x
  3. Step 3: Cross multiply
    445,032.94x = 667,613.03 × 137,311
  4. Step 4: Simplify right side
    445,032.94x = 91,670,612,762.33
  5. Step 5: Solve for x
    x = 91,670,612,762.33/445,032.94
  6. Step 6: Final answer
    x = 205,986.13

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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.