Home / 221,725.28-305,981.18-126,231.98

Finding the Fourth Proportional to 221,725.28, 305,981.18 and 126,231.98

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Solution

The fourth proportional to 221,725.28, 305,981.18 and 126,231.98 is: 174,200.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,725.28 : 305,981.18 = 126,231.98 : x
  2. Step 2: Convert to fraction form
    221,725.28/305,981.18 = 126,231.98/x
  3. Step 3: Cross multiply
    221,725.28x = 305,981.18 × 126,231.98
  4. Step 4: Simplify right side
    221,725.28x = 38,624,609,080.16
  5. Step 5: Solve for x
    x = 38,624,609,080.16/221,725.28
  6. Step 6: Final answer
    x = 174,200.29

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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.