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Finding the Fourth Proportional to 319,350.36, 479,034.16 and 79,454.56

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Solution

The fourth proportional to 319,350.36, 479,034.16 and 79,454.56 is: 119,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,350.36 : 479,034.16 = 79,454.56 : x
  2. Step 2: Convert to fraction form
    319,350.36/479,034.16 = 79,454.56/x
  3. Step 3: Cross multiply
    319,350.36x = 479,034.16 × 79,454.56
  4. Step 4: Simplify right side
    319,350.36x = 38,061,448,407.77
  5. Step 5: Solve for x
    x = 38,061,448,407.77/319,350.36
  6. Step 6: Final answer
    x = 119,183.98

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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.