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Finding the Fourth Proportional to 333,843.20, 499,843.20 and 260,115.20

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Solution

The fourth proportional to 333,843.20, 499,843.20 and 260,115.20 is: 389,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,843.20 : 499,843.20 = 260,115.20 : x
  2. Step 2: Convert to fraction form
    333,843.20/499,843.20 = 260,115.20/x
  3. Step 3: Cross multiply
    333,843.20x = 499,843.20 × 260,115.20
  4. Step 4: Simplify right side
    333,843.20x = 130,016,813,936.64
  5. Step 5: Solve for x
    x = 130,016,813,936.64/333,843.20
  6. Step 6: Final answer
    x = 389,454.73

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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.