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Finding the Fourth Proportional to 319,644.28, 479,607.90 and 167,805.64

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Solution

The fourth proportional to 319,644.28, 479,607.90 and 167,805.64 is: 251,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,644.28 : 479,607.90 = 167,805.64 : x
  2. Step 2: Convert to fraction form
    319,644.28/479,607.90 = 167,805.64/x
  3. Step 3: Cross multiply
    319,644.28x = 479,607.90 × 167,805.64
  4. Step 4: Simplify right side
    319,644.28x = 80,480,910,608.56
  5. Step 5: Solve for x
    x = 80,480,910,608.56/319,644.28
  6. Step 6: Final answer
    x = 251,782.73

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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.