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Finding the Fourth Proportional to 300,662.46, 450,977.85 and 100,986.93

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Solution

The fourth proportional to 300,662.46, 450,977.85 and 100,986.93 is: 151,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,662.46 : 450,977.85 = 100,986.93 : x
  2. Step 2: Convert to fraction form
    300,662.46/450,977.85 = 100,986.93/x
  3. Step 3: Cross multiply
    300,662.46x = 450,977.85 × 100,986.93
  4. Step 4: Simplify right side
    300,662.46x = 45,542,868,569.50
  5. Step 5: Solve for x
    x = 45,542,868,569.50/300,662.46
  6. Step 6: Final answer
    x = 151,475.07

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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.