Home / 221,840.34-306,194.07-126,403.30

Finding the Fourth Proportional to 221,840.34, 306,194.07 and 126,403.30

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Solution

The fourth proportional to 221,840.34, 306,194.07 and 126,403.30 is: 174,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,840.34 : 306,194.07 = 126,403.30 : x
  2. Step 2: Convert to fraction form
    221,840.34/306,194.07 = 126,403.30/x
  3. Step 3: Cross multiply
    221,840.34x = 306,194.07 × 126,403.30
  4. Step 4: Simplify right side
    221,840.34x = 38,703,940,888.43
  5. Step 5: Solve for x
    x = 38,703,940,888.43/221,840.34
  6. Step 6: Final answer
    x = 174,467.55

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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.