Home / 240,284.43-331,487.51-138,287.61

Finding the Fourth Proportional to 240,284.43, 331,487.51 and 138,287.61

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Solution

The fourth proportional to 240,284.43, 331,487.51 and 138,287.61 is: 190,776.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,284.43 : 331,487.51 = 138,287.61 : x
  2. Step 2: Convert to fraction form
    240,284.43/331,487.51 = 138,287.61/x
  3. Step 3: Cross multiply
    240,284.43x = 331,487.51 × 138,287.61
  4. Step 4: Simplify right side
    240,284.43x = 45,840,614,811.31
  5. Step 5: Solve for x
    x = 45,840,614,811.31/240,284.43
  6. Step 6: Final answer
    x = 190,776.47

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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.