Home / 330,942.80-496,439.16-103,209.68

Finding the Fourth Proportional to 330,942.80, 496,439.16 and 103,209.68

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Solution

The fourth proportional to 330,942.80, 496,439.16 and 103,209.68 is: 154,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,942.80 : 496,439.16 = 103,209.68 : x
  2. Step 2: Convert to fraction form
    330,942.80/496,439.16 = 103,209.68/x
  3. Step 3: Cross multiply
    330,942.80x = 496,439.16 × 103,209.68
  4. Step 4: Simplify right side
    330,942.80x = 51,237,326,843.07
  5. Step 5: Solve for x
    x = 51,237,326,843.07/330,942.80
  6. Step 6: Final answer
    x = 154,822.30

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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.