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Finding the Fourth Proportional to 220,809.30, 330,825.15 and 181,151.70

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Solution

The fourth proportional to 220,809.30, 330,825.15 and 181,151.70 is: 271,408.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,809.30 : 330,825.15 = 181,151.70 : x
  2. Step 2: Convert to fraction form
    220,809.30/330,825.15 = 181,151.70/x
  3. Step 3: Cross multiply
    220,809.30x = 330,825.15 × 181,151.70
  4. Step 4: Simplify right side
    220,809.30x = 59,929,538,325.26
  5. Step 5: Solve for x
    x = 59,929,538,325.26/220,809.30
  6. Step 6: Final answer
    x = 271,408.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.