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Finding the Fourth Proportional to 319,489.52, 479,152.19 and 94,796.80

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Solution

The fourth proportional to 319,489.52, 479,152.19 and 94,796.80 is: 142,170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,489.52 : 479,152.19 = 94,796.80 : x
  2. Step 2: Convert to fraction form
    319,489.52/479,152.19 = 94,796.80/x
  3. Step 3: Cross multiply
    319,489.52x = 479,152.19 × 94,796.80
  4. Step 4: Simplify right side
    319,489.52x = 45,422,093,364.10
  5. Step 5: Solve for x
    x = 45,422,093,364.10/319,489.52
  6. Step 6: Final answer
    x = 142,170.84

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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.