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Finding the Fourth Proportional to 300,010.20, 450,015.30 and 187,817.10

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Solution

The fourth proportional to 300,010.20, 450,015.30 and 187,817.10 is: 281,725.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,010.20 : 450,015.30 = 187,817.10 : x
  2. Step 2: Convert to fraction form
    300,010.20/450,015.30 = 187,817.10/x
  3. Step 3: Cross multiply
    300,010.20x = 450,015.30 × 187,817.10
  4. Step 4: Simplify right side
    300,010.20x = 84,520,568,601.63
  5. Step 5: Solve for x
    x = 84,520,568,601.63/300,010.20
  6. Step 6: Final answer
    x = 281,725.65

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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.