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Finding the Fourth Proportional to 300,342.44, 450,039.42 and 243,907.94

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Solution

The fourth proportional to 300,342.44, 450,039.42 and 243,907.94 is: 365,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,342.44 : 450,039.42 = 243,907.94 : x
  2. Step 2: Convert to fraction form
    300,342.44/450,039.42 = 243,907.94/x
  3. Step 3: Cross multiply
    300,342.44x = 450,039.42 × 243,907.94
  4. Step 4: Simplify right side
    300,342.44x = 109,768,187,851.00
  5. Step 5: Solve for x
    x = 109,768,187,851.00/300,342.44
  6. Step 6: Final answer
    x = 365,476.78

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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.