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Finding the Fourth Proportional to 319,523.92, 440,920.26 and 179,842.90

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Solution

The fourth proportional to 319,523.92, 440,920.26 and 179,842.90 is: 248,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,523.92 : 440,920.26 = 179,842.90 : x
  2. Step 2: Convert to fraction form
    319,523.92/440,920.26 = 179,842.90/x
  3. Step 3: Cross multiply
    319,523.92x = 440,920.26 × 179,842.90
  4. Step 4: Simplify right side
    319,523.92x = 79,296,378,227.15
  5. Step 5: Solve for x
    x = 79,296,378,227.15/319,523.92
  6. Step 6: Final answer
    x = 248,170.40

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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.