Home / 521,109.45-781,727.22-184,081.12

Finding the Fourth Proportional to 521,109.45, 781,727.22 and 184,081.12

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Solution

The fourth proportional to 521,109.45, 781,727.22 and 184,081.12 is: 276,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,109.45 : 781,727.22 = 184,081.12 : x
  2. Step 2: Convert to fraction form
    521,109.45/781,727.22 = 184,081.12/x
  3. Step 3: Cross multiply
    521,109.45x = 781,727.22 × 184,081.12
  4. Step 4: Simplify right side
    521,109.45x = 143,901,220,237.77
  5. Step 5: Solve for x
    x = 143,901,220,237.77/521,109.45
  6. Step 6: Final answer
    x = 276,143.95

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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.