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Finding the Fourth Proportional to 300,261.74, 450,400.77 and 100,544.90

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Solution

The fourth proportional to 300,261.74, 450,400.77 and 100,544.90 is: 150,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,261.74 : 450,400.77 = 100,544.90 : x
  2. Step 2: Convert to fraction form
    300,261.74/450,400.77 = 100,544.90/x
  3. Step 3: Cross multiply
    300,261.74x = 450,400.77 × 100,544.90
  4. Step 4: Simplify right side
    300,261.74x = 45,285,498,127.57
  5. Step 5: Solve for x
    x = 45,285,498,127.57/300,261.74
  6. Step 6: Final answer
    x = 150,820.08

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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.