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Finding the Fourth Proportional to 319,873.80, 479,580.30 and 179,675.40

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Solution

The fourth proportional to 319,873.80, 479,580.30 and 179,675.40 is: 269,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,873.80 : 479,580.30 = 179,675.40 : x
  2. Step 2: Convert to fraction form
    319,873.80/479,580.30 = 179,675.40/x
  3. Step 3: Cross multiply
    319,873.80x = 479,580.30 × 179,675.40
  4. Step 4: Simplify right side
    319,873.80x = 86,168,782,234.62
  5. Step 5: Solve for x
    x = 86,168,782,234.62/319,873.80
  6. Step 6: Final answer
    x = 269,383.68

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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.