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Finding the Fourth Proportional to 240,450.63, 331,846.79 and 138,479.73

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Solution

The fourth proportional to 240,450.63, 331,846.79 and 138,479.73 is: 191,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,450.63 : 331,846.79 = 138,479.73 : x
  2. Step 2: Convert to fraction form
    240,450.63/331,846.79 = 138,479.73/x
  3. Step 3: Cross multiply
    240,450.63x = 331,846.79 × 138,479.73
  4. Step 4: Simplify right side
    240,450.63x = 45,954,053,188.17
  5. Step 5: Solve for x
    x = 45,954,053,188.17/240,450.63
  6. Step 6: Final answer
    x = 191,116.38

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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.