Home / 259,421.96-389,208.30-107,591.20

Finding the Fourth Proportional to 259,421.96, 389,208.30 and 107,591.20

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Solution

The fourth proportional to 259,421.96, 389,208.30 and 107,591.20 is: 161,418.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,421.96 : 389,208.30 = 107,591.20 : x
  2. Step 2: Convert to fraction form
    259,421.96/389,208.30 = 107,591.20/x
  3. Step 3: Cross multiply
    259,421.96x = 389,208.30 × 107,591.20
  4. Step 4: Simplify right side
    259,421.96x = 41,875,386,670.47
  5. Step 5: Solve for x
    x = 41,875,386,670.47/259,421.96
  6. Step 6: Final answer
    x = 161,418.05

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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.