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Finding the Fourth Proportional to 231,173.76, 319,283.04 and 155,591.04

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Solution

The fourth proportional to 231,173.76, 319,283.04 and 155,591.04 is: 214,892.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,173.76 : 319,283.04 = 155,591.04 : x
  2. Step 2: Convert to fraction form
    231,173.76/319,283.04 = 155,591.04/x
  3. Step 3: Cross multiply
    231,173.76x = 319,283.04 × 155,591.04
  4. Step 4: Simplify right side
    231,173.76x = 49,677,580,247.96
  5. Step 5: Solve for x
    x = 49,677,580,247.96/231,173.76
  6. Step 6: Final answer
    x = 214,892.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.