Home / 319,781.50-479,628.51-95,176.60

Finding the Fourth Proportional to 319,781.50, 479,628.51 and 95,176.60

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Solution

The fourth proportional to 319,781.50, 479,628.51 and 95,176.60 is: 142,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,781.50 : 479,628.51 = 95,176.60 : x
  2. Step 2: Convert to fraction form
    319,781.50/479,628.51 = 95,176.60/x
  3. Step 3: Cross multiply
    319,781.50x = 479,628.51 × 95,176.60
  4. Step 4: Simplify right side
    319,781.50x = 45,649,409,288.88
  5. Step 5: Solve for x
    x = 45,649,409,288.88/319,781.50
  6. Step 6: Final answer
    x = 142,751.88

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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.