Home / 221,194.52-305,270.34-130,580.36

Finding the Fourth Proportional to 221,194.52, 305,270.34 and 130,580.36

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Solution

The fourth proportional to 221,194.52, 305,270.34 and 130,580.36 is: 180,213.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,194.52 : 305,270.34 = 130,580.36 : x
  2. Step 2: Convert to fraction form
    221,194.52/305,270.34 = 130,580.36/x
  3. Step 3: Cross multiply
    221,194.52x = 305,270.34 × 130,580.36
  4. Step 4: Simplify right side
    221,194.52x = 39,862,310,894.52
  5. Step 5: Solve for x
    x = 39,862,310,894.52/221,194.52
  6. Step 6: Final answer
    x = 180,213.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.