Home / 221,505.44-305,666.88-126,003.20

Finding the Fourth Proportional to 221,505.44, 305,666.88 and 126,003.20

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Solution

The fourth proportional to 221,505.44, 305,666.88 and 126,003.20 is: 173,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,505.44 : 305,666.88 = 126,003.20 : x
  2. Step 2: Convert to fraction form
    221,505.44/305,666.88 = 126,003.20/x
  3. Step 3: Cross multiply
    221,505.44x = 305,666.88 × 126,003.20
  4. Step 4: Simplify right side
    221,505.44x = 38,515,005,014.02
  5. Step 5: Solve for x
    x = 38,515,005,014.02/221,505.44
  6. Step 6: Final answer
    x = 173,878.37

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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.