Home / 220,690.20-331,208.10-102,376.20

Finding the Fourth Proportional to 220,690.20, 331,208.10 and 102,376.20

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Solution

The fourth proportional to 220,690.20, 331,208.10 and 102,376.20 is: 153,644.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,690.20 : 331,208.10 = 102,376.20 : x
  2. Step 2: Convert to fraction form
    220,690.20/331,208.10 = 102,376.20/x
  3. Step 3: Cross multiply
    220,690.20x = 331,208.10 × 102,376.20
  4. Step 4: Simplify right side
    220,690.20x = 33,907,826,687.22
  5. Step 5: Solve for x
    x = 33,907,826,687.22/220,690.20
  6. Step 6: Final answer
    x = 153,644.46

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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.