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Finding the Fourth Proportional to 300,165.20, 450,329.72 and 100,518.48

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Solution

The fourth proportional to 300,165.20, 450,329.72 and 100,518.48 is: 150,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,165.20 : 450,329.72 = 100,518.48 : x
  2. Step 2: Convert to fraction form
    300,165.20/450,329.72 = 100,518.48/x
  3. Step 3: Cross multiply
    300,165.20x = 450,329.72 × 100,518.48
  4. Step 4: Simplify right side
    300,165.20x = 45,266,458,953.23
  5. Step 5: Solve for x
    x = 45,266,458,953.23/300,165.20
  6. Step 6: Final answer
    x = 150,805.15

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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.