Home / 343,896.20-515,844.30-255,322.70

Finding the Fourth Proportional to 343,896.20, 515,844.30 and 255,322.70

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Solution

The fourth proportional to 343,896.20, 515,844.30 and 255,322.70 is: 382,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,896.20 : 515,844.30 = 255,322.70 : x
  2. Step 2: Convert to fraction form
    343,896.20/515,844.30 = 255,322.70/x
  3. Step 3: Cross multiply
    343,896.20x = 515,844.30 × 255,322.70
  4. Step 4: Simplify right side
    343,896.20x = 131,706,759,455.61
  5. Step 5: Solve for x
    x = 131,706,759,455.61/343,896.20
  6. Step 6: Final answer
    x = 382,984.05

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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.