Home / 253,661.24-380,550.18-76,171.61

Finding the Fourth Proportional to 253,661.24, 380,550.18 and 76,171.61

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Solution

The fourth proportional to 253,661.24, 380,550.18 and 76,171.61 is: 114,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,661.24 : 380,550.18 = 76,171.61 : x
  2. Step 2: Convert to fraction form
    253,661.24/380,550.18 = 76,171.61/x
  3. Step 3: Cross multiply
    253,661.24x = 380,550.18 × 76,171.61
  4. Step 4: Simplify right side
    253,661.24x = 28,987,119,896.39
  5. Step 5: Solve for x
    x = 28,987,119,896.39/253,661.24
  6. Step 6: Final answer
    x = 114,274.93

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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.