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Finding the Fourth Proportional to 319,365.78, 479,085.66 and 106,152.72

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Solution

The fourth proportional to 319,365.78, 479,085.66 and 106,152.72 is: 159,241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,365.78 : 479,085.66 = 106,152.72 : x
  2. Step 2: Convert to fraction form
    319,365.78/479,085.66 = 106,152.72/x
  3. Step 3: Cross multiply
    319,365.78x = 479,085.66 × 106,152.72
  4. Step 4: Simplify right side
    319,365.78x = 50,856,245,922.00
  5. Step 5: Solve for x
    x = 50,856,245,922.00/319,365.78
  6. Step 6: Final answer
    x = 159,241.37

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1.5x scale

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.