Home / 221,795.20-306,046.40-126,297.28

Finding the Fourth Proportional to 221,795.20, 306,046.40 and 126,297.28

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Solution

The fourth proportional to 221,795.20, 306,046.40 and 126,297.28 is: 174,272.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,795.20 : 306,046.40 = 126,297.28 : x
  2. Step 2: Convert to fraction form
    221,795.20/306,046.40 = 126,297.28/x
  3. Step 3: Cross multiply
    221,795.20x = 306,046.40 × 126,297.28
  4. Step 4: Simplify right side
    221,795.20x = 38,652,827,873.79
  5. Step 5: Solve for x
    x = 38,652,827,873.79/221,795.20
  6. Step 6: Final answer
    x = 174,272.61

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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.