Home / 231,385.86-346,682.70-126,278.64

Finding the Fourth Proportional to 231,385.86, 346,682.70 and 126,278.64

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Solution

The fourth proportional to 231,385.86, 346,682.70 and 126,278.64 is: 189,201.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,385.86 : 346,682.70 = 126,278.64 : x
  2. Step 2: Convert to fraction form
    231,385.86/346,682.70 = 126,278.64/x
  3. Step 3: Cross multiply
    231,385.86x = 346,682.70 × 126,278.64
  4. Step 4: Simplify right side
    231,385.86x = 43,778,619,867.53
  5. Step 5: Solve for x
    x = 43,778,619,867.53/231,385.86
  6. Step 6: Final answer
    x = 189,201.79

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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.