Home / 221,740.32-306,025.92-126,231.60

Finding the Fourth Proportional to 221,740.32, 306,025.92 and 126,231.60

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Solution

The fourth proportional to 221,740.32, 306,025.92 and 126,231.60 is: 174,213.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,740.32 : 306,025.92 = 126,231.60 : x
  2. Step 2: Convert to fraction form
    221,740.32/306,025.92 = 126,231.60/x
  3. Step 3: Cross multiply
    221,740.32x = 306,025.92 × 126,231.60
  4. Step 4: Simplify right side
    221,740.32x = 38,630,141,523.07
  5. Step 5: Solve for x
    x = 38,630,141,523.07/221,740.32
  6. Step 6: Final answer
    x = 174,213.43

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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.