Home / 356,108.07-491,456.42-203,149.64

Finding the Fourth Proportional to 356,108.07, 491,456.42 and 203,149.64

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Solution

The fourth proportional to 356,108.07, 491,456.42 and 203,149.64 is: 280,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,108.07 : 491,456.42 = 203,149.64 : x
  2. Step 2: Convert to fraction form
    356,108.07/491,456.42 = 203,149.64/x
  3. Step 3: Cross multiply
    356,108.07x = 491,456.42 × 203,149.64
  4. Step 4: Simplify right side
    356,108.07x = 99,839,191,325.66
  5. Step 5: Solve for x
    x = 99,839,191,325.66/356,108.07
  6. Step 6: Final answer
    x = 280,362.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.