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Finding the Fourth Proportional to 400,232.09, 600,261.79 and 126,699.90

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Solution

The fourth proportional to 400,232.09, 600,261.79 and 126,699.90 is: 190,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,232.09 : 600,261.79 = 126,699.90 : x
  2. Step 2: Convert to fraction form
    400,232.09/600,261.79 = 126,699.90/x
  3. Step 3: Cross multiply
    400,232.09x = 600,261.79 × 126,699.90
  4. Step 4: Simplify right side
    400,232.09x = 76,053,106,436.65
  5. Step 5: Solve for x
    x = 76,053,106,436.65/400,232.09
  6. Step 6: Final answer
    x = 190,022.51

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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.