Home / 309,956.20-464,934.30-99,610.60

Finding the Fourth Proportional to 309,956.20, 464,934.30 and 99,610.60

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Solution

The fourth proportional to 309,956.20, 464,934.30 and 99,610.60 is: 149,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,956.20 : 464,934.30 = 99,610.60 : x
  2. Step 2: Convert to fraction form
    309,956.20/464,934.30 = 99,610.60/x
  3. Step 3: Cross multiply
    309,956.20x = 464,934.30 × 99,610.60
  4. Step 4: Simplify right side
    309,956.20x = 46,312,384,583.58
  5. Step 5: Solve for x
    x = 46,312,384,583.58/309,956.20
  6. Step 6: Final answer
    x = 149,415.90

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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.