Home / 257,810.49-386,734.37-107,899.97

Finding the Fourth Proportional to 257,810.49, 386,734.37 and 107,899.97

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Solution

The fourth proportional to 257,810.49, 386,734.37 and 107,899.97 is: 161,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,810.49 : 386,734.37 = 107,899.97 : x
  2. Step 2: Convert to fraction form
    257,810.49/386,734.37 = 107,899.97/x
  3. Step 3: Cross multiply
    257,810.49x = 386,734.37 × 107,899.97
  4. Step 4: Simplify right side
    257,810.49x = 41,728,624,447.80
  5. Step 5: Solve for x
    x = 41,728,624,447.80/257,810.49
  6. Step 6: Final answer
    x = 161,857.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.