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Finding the Fourth Proportional to 239,776.99, 331,012.01 and 149,162.40

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Solution

The fourth proportional to 239,776.99, 331,012.01 and 149,162.40 is: 205,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,776.99 : 331,012.01 = 149,162.40 : x
  2. Step 2: Convert to fraction form
    239,776.99/331,012.01 = 149,162.40/x
  3. Step 3: Cross multiply
    239,776.99x = 331,012.01 × 149,162.40
  4. Step 4: Simplify right side
    239,776.99x = 49,374,546,213.33
  5. Step 5: Solve for x
    x = 49,374,546,213.33/239,776.99
  6. Step 6: Final answer
    x = 205,918.62

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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.