Home / 221,270.44-305,510.34-136,414.12

Finding the Fourth Proportional to 221,270.44, 305,510.34 and 136,414.12

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Solution

The fourth proportional to 221,270.44, 305,510.34 and 136,414.12 is: 188,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,270.44 : 305,510.34 = 136,414.12 : x
  2. Step 2: Convert to fraction form
    221,270.44/305,510.34 = 136,414.12/x
  3. Step 3: Cross multiply
    221,270.44x = 305,510.34 × 136,414.12
  4. Step 4: Simplify right side
    221,270.44x = 41,675,924,182.00
  5. Step 5: Solve for x
    x = 41,675,924,182.00/221,270.44
  6. Step 6: Final answer
    x = 188,348.36

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1.5x scale

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.