Home / 356,412.06-491,454.62-227,145.96

Finding the Fourth Proportional to 356,412.06, 491,454.62 and 227,145.96

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Solution

The fourth proportional to 356,412.06, 491,454.62 and 227,145.96 is: 313,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,412.06 : 491,454.62 = 227,145.96 : x
  2. Step 2: Convert to fraction form
    356,412.06/491,454.62 = 227,145.96/x
  3. Step 3: Cross multiply
    356,412.06x = 491,454.62 × 227,145.96
  4. Step 4: Simplify right side
    356,412.06x = 111,631,930,320.61
  5. Step 5: Solve for x
    x = 111,631,930,320.61/356,412.06
  6. Step 6: Final answer
    x = 313,210.31

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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.