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Finding the Fourth Proportional to 240,309.63, 331,771.19 and 149,788.21

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Solution

The fourth proportional to 240,309.63, 331,771.19 and 149,788.21 is: 206,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,309.63 : 331,771.19 = 149,788.21 : x
  2. Step 2: Convert to fraction form
    240,309.63/331,771.19 = 149,788.21/x
  3. Step 3: Cross multiply
    240,309.63x = 331,771.19 × 149,788.21
  4. Step 4: Simplify right side
    240,309.63x = 49,695,411,425.01
  5. Step 5: Solve for x
    x = 49,695,411,425.01/240,309.63
  6. Step 6: Final answer
    x = 206,797.42

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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.