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Finding the Fourth Proportional to 300,373.47, 450,664.01 and 187,919.73

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Solution

The fourth proportional to 300,373.47, 450,664.01 and 187,919.73 is: 281,944.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,373.47 : 450,664.01 = 187,919.73 : x
  2. Step 2: Convert to fraction form
    300,373.47/450,664.01 = 187,919.73/x
  3. Step 3: Cross multiply
    300,373.47x = 450,664.01 × 187,919.73
  4. Step 4: Simplify right side
    300,373.47x = 84,688,656,570.33
  5. Step 5: Solve for x
    x = 84,688,656,570.33/300,373.47
  6. Step 6: Final answer
    x = 281,944.53

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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.