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Finding the Fourth Proportional to 300,404.42, 450,549.27 and 90,042.36

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Solution

The fourth proportional to 300,404.42, 450,549.27 and 90,042.36 is: 135,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,404.42 : 450,549.27 = 90,042.36 : x
  2. Step 2: Convert to fraction form
    300,404.42/450,549.27 = 90,042.36/x
  3. Step 3: Cross multiply
    300,404.42x = 450,549.27 × 90,042.36
  4. Step 4: Simplify right side
    300,404.42x = 40,568,519,567.08
  5. Step 5: Solve for x
    x = 40,568,519,567.08/300,404.42
  6. Step 6: Final answer
    x = 135,046.35

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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.