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Finding the Fourth Proportional to 300,292.26, 450,438.39 and 100,613.01

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Solution

The fourth proportional to 300,292.26, 450,438.39 and 100,613.01 is: 150,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,292.26 : 450,438.39 = 100,613.01 : x
  2. Step 2: Convert to fraction form
    300,292.26/450,438.39 = 100,613.01/x
  3. Step 3: Cross multiply
    300,292.26x = 450,438.39 × 100,613.01
  4. Step 4: Simplify right side
    300,292.26x = 45,319,962,942.71
  5. Step 5: Solve for x
    x = 45,319,962,942.71/300,292.26
  6. Step 6: Final answer
    x = 150,919.52

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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.