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Finding the Fourth Proportional to 300,816.77, 450,921.50 and 188,575.82

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Solution

The fourth proportional to 300,816.77, 450,921.50 and 188,575.82 is: 282,673.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,816.77 : 450,921.50 = 188,575.82 : x
  2. Step 2: Convert to fraction form
    300,816.77/450,921.50 = 188,575.82/x
  3. Step 3: Cross multiply
    300,816.77x = 450,921.50 × 188,575.82
  4. Step 4: Simplify right side
    300,816.77x = 85,032,892,273.99
  5. Step 5: Solve for x
    x = 85,032,892,273.99/300,816.77
  6. Step 6: Final answer
    x = 282,673.38

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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.