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Finding the Fourth Proportional to 246,344.72, 339,950.96 and 138,912.80

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Solution

The fourth proportional to 246,344.72, 339,950.96 and 138,912.80 is: 191,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,344.72 : 339,950.96 = 138,912.80 : x
  2. Step 2: Convert to fraction form
    246,344.72/339,950.96 = 138,912.80/x
  3. Step 3: Cross multiply
    246,344.72x = 339,950.96 × 138,912.80
  4. Step 4: Simplify right side
    246,344.72x = 47,223,539,716.29
  5. Step 5: Solve for x
    x = 47,223,539,716.29/246,344.72
  6. Step 6: Final answer
    x = 191,696.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.