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Finding the Fourth Proportional to 300,010.80, 450,131.40 and 295,287.60

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Solution

The fourth proportional to 300,010.80, 450,131.40 and 295,287.60 is: 443,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,010.80 : 450,131.40 = 295,287.60 : x
  2. Step 2: Convert to fraction form
    300,010.80/450,131.40 = 295,287.60/x
  3. Step 3: Cross multiply
    300,010.80x = 450,131.40 × 295,287.60
  4. Step 4: Simplify right side
    300,010.80x = 132,918,220,790.64
  5. Step 5: Solve for x
    x = 132,918,220,790.64/300,010.80
  6. Step 6: Final answer
    x = 443,044.79

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1.5x scale

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.