Home / 257,964.46-386,804.60-138,161.82

Finding the Fourth Proportional to 257,964.46, 386,804.60 and 138,161.82

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Solution

The fourth proportional to 257,964.46, 386,804.60 and 138,161.82 is: 207,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,964.46 : 386,804.60 = 138,161.82 : x
  2. Step 2: Convert to fraction form
    257,964.46/386,804.60 = 138,161.82/x
  3. Step 3: Cross multiply
    257,964.46x = 386,804.60 × 138,161.82
  4. Step 4: Simplify right side
    257,964.46x = 53,441,627,520.37
  5. Step 5: Solve for x
    x = 53,441,627,520.37/257,964.46
  6. Step 6: Final answer
    x = 207,166.63

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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.