Home / 238,238.77-357,282.37-78,277.83

Finding the Fourth Proportional to 238,238.77, 357,282.37 and 78,277.83

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Solution

The fourth proportional to 238,238.77, 357,282.37 and 78,277.83 is: 117,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,238.77 : 357,282.37 = 78,277.83 : x
  2. Step 2: Convert to fraction form
    238,238.77/357,282.37 = 78,277.83/x
  3. Step 3: Cross multiply
    238,238.77x = 357,282.37 × 78,277.83
  4. Step 4: Simplify right side
    238,238.77x = 27,967,288,620.86
  5. Step 5: Solve for x
    x = 27,967,288,620.86/238,238.77
  6. Step 6: Final answer
    x = 117,391.84

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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.