Home / 215,876.24-321,643.90-203,804

Finding the Fourth Proportional to 215,876.24, 321,643.90 and 203,804

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Solution

The fourth proportional to 215,876.24, 321,643.90 and 203,804 is: 303,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,876.24 : 321,643.90 = 203,804 : x
  2. Step 2: Convert to fraction form
    215,876.24/321,643.90 = 203,804/x
  3. Step 3: Cross multiply
    215,876.24x = 321,643.90 × 203,804
  4. Step 4: Simplify right side
    215,876.24x = 65,552,313,395.60
  5. Step 5: Solve for x
    x = 65,552,313,395.60/215,876.24
  6. Step 6: Final answer
    x = 303,656.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.