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Finding the Fourth Proportional to 319,771.80, 479,427.30 and 179,573.40

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Solution

The fourth proportional to 319,771.80, 479,427.30 and 179,573.40 is: 269,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,771.80 : 479,427.30 = 179,573.40 : x
  2. Step 2: Convert to fraction form
    319,771.80/479,427.30 = 179,573.40/x
  3. Step 3: Cross multiply
    319,771.80x = 479,427.30 × 179,573.40
  4. Step 4: Simplify right side
    319,771.80x = 86,092,390,313.82
  5. Step 5: Solve for x
    x = 86,092,390,313.82/319,771.80
  6. Step 6: Final answer
    x = 269,230.71

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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.