Home / 319,231.44-478,742.96-105,942.04

Finding the Fourth Proportional to 319,231.44, 478,742.96 and 105,942.04

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Solution

The fourth proportional to 319,231.44, 478,742.96 and 105,942.04 is: 158,878.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,231.44 : 478,742.96 = 105,942.04 : x
  2. Step 2: Convert to fraction form
    319,231.44/478,742.96 = 105,942.04/x
  3. Step 3: Cross multiply
    319,231.44x = 478,742.96 × 105,942.04
  4. Step 4: Simplify right side
    319,231.44x = 50,719,005,818.04
  5. Step 5: Solve for x
    x = 50,719,005,818.04/319,231.44
  6. Step 6: Final answer
    x = 158,878.48

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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.