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Finding the Fourth Proportional to 319,588.20, 479,727.90 and 179,620.20

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Solution

The fourth proportional to 319,588.20, 479,727.90 and 179,620.20 is: 269,624.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,588.20 : 479,727.90 = 179,620.20 : x
  2. Step 2: Convert to fraction form
    319,588.20/479,727.90 = 179,620.20/x
  3. Step 3: Cross multiply
    319,588.20x = 479,727.90 × 179,620.20
  4. Step 4: Simplify right side
    319,588.20x = 86,168,821,343.58
  5. Step 5: Solve for x
    x = 86,168,821,343.58/319,588.20
  6. Step 6: Final answer
    x = 269,624.54

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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.