Home / 330,819.90-496,359.45-131,106.30

Finding the Fourth Proportional to 330,819.90, 496,359.45 and 131,106.30

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Solution

The fourth proportional to 330,819.90, 496,359.45 and 131,106.30 is: 196,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,819.90 : 496,359.45 = 131,106.30 : x
  2. Step 2: Convert to fraction form
    330,819.90/496,359.45 = 131,106.30/x
  3. Step 3: Cross multiply
    330,819.90x = 496,359.45 × 131,106.30
  4. Step 4: Simplify right side
    330,819.90x = 65,075,850,959.54
  5. Step 5: Solve for x
    x = 65,075,850,959.54/330,819.90
  6. Step 6: Final answer
    x = 196,710.81

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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.