Home / 305,234.61-457,789.56-115,629.61

Finding the Fourth Proportional to 305,234.61, 457,789.56 and 115,629.61

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Solution

The fourth proportional to 305,234.61, 457,789.56 and 115,629.61 is: 173,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,234.61 : 457,789.56 = 115,629.61 : x
  2. Step 2: Convert to fraction form
    305,234.61/457,789.56 = 115,629.61/x
  3. Step 3: Cross multiply
    305,234.61x = 457,789.56 × 115,629.61
  4. Step 4: Simplify right side
    305,234.61x = 52,934,028,284.87
  5. Step 5: Solve for x
    x = 52,934,028,284.87/305,234.61
  6. Step 6: Final answer
    x = 173,420.79

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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.