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Finding the Fourth Proportional to 270,010.80, 372,608.10 and 149,142.60

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Solution

The fourth proportional to 270,010.80, 372,608.10 and 149,142.60 is: 205,813.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,010.80 : 372,608.10 = 149,142.60 : x
  2. Step 2: Convert to fraction form
    270,010.80/372,608.10 = 149,142.60/x
  3. Step 3: Cross multiply
    270,010.80x = 372,608.10 × 149,142.60
  4. Step 4: Simplify right side
    270,010.80x = 55,571,740,815.06
  5. Step 5: Solve for x
    x = 55,571,740,815.06/270,010.80
  6. Step 6: Final answer
    x = 205,813.03

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1.5x scale

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.