Home / 319,867.44-479,276.01-109,390.56

Finding the Fourth Proportional to 319,867.44, 479,276.01 and 109,390.56

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Solution

The fourth proportional to 319,867.44, 479,276.01 and 109,390.56 is: 163,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,867.44 : 479,276.01 = 109,390.56 : x
  2. Step 2: Convert to fraction form
    319,867.44/479,276.01 = 109,390.56/x
  3. Step 3: Cross multiply
    319,867.44x = 479,276.01 × 109,390.56
  4. Step 4: Simplify right side
    319,867.44x = 52,428,271,128.47
  5. Step 5: Solve for x
    x = 52,428,271,128.47/319,867.44
  6. Step 6: Final answer
    x = 163,906.25

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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.