Home / 257,346.40-386,022.48-107,609.44

Finding the Fourth Proportional to 257,346.40, 386,022.48 and 107,609.44

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Solution

The fourth proportional to 257,346.40, 386,022.48 and 107,609.44 is: 161,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,346.40 : 386,022.48 = 107,609.44 : x
  2. Step 2: Convert to fraction form
    257,346.40/386,022.48 = 107,609.44/x
  3. Step 3: Cross multiply
    257,346.40x = 386,022.48 × 107,609.44
  4. Step 4: Simplify right side
    257,346.40x = 41,539,662,900.21
  5. Step 5: Solve for x
    x = 41,539,662,900.21/257,346.40
  6. Step 6: Final answer
    x = 161,415.36

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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.