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Finding the Fourth Proportional to 270,083.20, 405,124.80 and 169,918.60

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Solution

The fourth proportional to 270,083.20, 405,124.80 and 169,918.60 is: 254,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,083.20 : 405,124.80 = 169,918.60 : x
  2. Step 2: Convert to fraction form
    270,083.20/405,124.80 = 169,918.60/x
  3. Step 3: Cross multiply
    270,083.20x = 405,124.80 × 169,918.60
  4. Step 4: Simplify right side
    270,083.20x = 68,838,238,841.28
  5. Step 5: Solve for x
    x = 68,838,238,841.28/270,083.20
  6. Step 6: Final answer
    x = 254,877.90

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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.