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Finding the Fourth Proportional to 300,077.60, 450,140.16 and 100,399.04

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Solution

The fourth proportional to 300,077.60, 450,140.16 and 100,399.04 is: 150,606.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,077.60 : 450,140.16 = 100,399.04 : x
  2. Step 2: Convert to fraction form
    300,077.60/450,140.16 = 100,399.04/x
  3. Step 3: Cross multiply
    300,077.60x = 450,140.16 × 100,399.04
  4. Step 4: Simplify right side
    300,077.60x = 45,193,639,929.45
  5. Step 5: Solve for x
    x = 45,193,639,929.45/300,077.60
  6. Step 6: Final answer
    x = 150,606.51

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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.