Home / 221,805.20-306,090.84-126,311.94

Finding the Fourth Proportional to 221,805.20, 306,090.84 and 126,311.94

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Solution

The fourth proportional to 221,805.20, 306,090.84 and 126,311.94 is: 174,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,805.20 : 306,090.84 = 126,311.94 : x
  2. Step 2: Convert to fraction form
    221,805.20/306,090.84 = 126,311.94/x
  3. Step 3: Cross multiply
    221,805.20x = 306,090.84 × 126,311.94
  4. Step 4: Simplify right side
    221,805.20x = 38,662,927,816.63
  5. Step 5: Solve for x
    x = 38,662,927,816.63/221,805.20
  6. Step 6: Final answer
    x = 174,310.29

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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.