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Finding the Fourth Proportional to 379,988.72, 569,607.20 and 179,957.60

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Solution

The fourth proportional to 379,988.72, 569,607.20 and 179,957.60 is: 269,758.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,988.72 : 569,607.20 = 179,957.60 : x
  2. Step 2: Convert to fraction form
    379,988.72/569,607.20 = 179,957.60/x
  3. Step 3: Cross multiply
    379,988.72x = 569,607.20 × 179,957.60
  4. Step 4: Simplify right side
    379,988.72x = 102,505,144,654.72
  5. Step 5: Solve for x
    x = 102,505,144,654.72/379,988.72
  6. Step 6: Final answer
    x = 269,758.39

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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.