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Finding the Fourth Proportional to 319,227.55, 478,982.37 and 167,388.37

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Solution

The fourth proportional to 319,227.55, 478,982.37 and 167,388.37 is: 251,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,227.55 : 478,982.37 = 167,388.37 : x
  2. Step 2: Convert to fraction form
    319,227.55/478,982.37 = 167,388.37/x
  3. Step 3: Cross multiply
    319,227.55x = 478,982.37 × 167,388.37
  4. Step 4: Simplify right side
    319,227.55x = 80,176,078,173.04
  5. Step 5: Solve for x
    x = 80,176,078,173.04/319,227.55
  6. Step 6: Final answer
    x = 251,156.51

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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.