Home / 257,741.06-386,456.13-115,560.54

Finding the Fourth Proportional to 257,741.06, 386,456.13 and 115,560.54

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Solution

The fourth proportional to 257,741.06, 386,456.13 and 115,560.54 is: 173,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,741.06 : 386,456.13 = 115,560.54 : x
  2. Step 2: Convert to fraction form
    257,741.06/386,456.13 = 115,560.54/x
  3. Step 3: Cross multiply
    257,741.06x = 386,456.13 × 115,560.54
  4. Step 4: Simplify right side
    257,741.06x = 44,659,079,069.11
  5. Step 5: Solve for x
    x = 44,659,079,069.11/257,741.06
  6. Step 6: Final answer
    x = 173,271.11

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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.