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Finding the Fourth Proportional to 319,401.92, 479,086.47 and 94,764.21

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Solution

The fourth proportional to 319,401.92, 479,086.47 and 94,764.21 is: 142,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,401.92 : 479,086.47 = 94,764.21 : x
  2. Step 2: Convert to fraction form
    319,401.92/479,086.47 = 94,764.21/x
  3. Step 3: Cross multiply
    319,401.92x = 479,086.47 × 94,764.21
  4. Step 4: Simplify right side
    319,401.92x = 45,400,250,851.24
  5. Step 5: Solve for x
    x = 45,400,250,851.24/319,401.92
  6. Step 6: Final answer
    x = 142,141.45

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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.