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Finding the Fourth Proportional to 330,382.44, 455,889 and 194,386.44

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Solution

The fourth proportional to 330,382.44, 455,889 and 194,386.44 is: 268,230.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,382.44 : 455,889 = 194,386.44 : x
  2. Step 2: Convert to fraction form
    330,382.44/455,889 = 194,386.44/x
  3. Step 3: Cross multiply
    330,382.44x = 455,889 × 194,386.44
  4. Step 4: Simplify right side
    330,382.44x = 88,618,639,745.16
  5. Step 5: Solve for x
    x = 88,618,639,745.16/330,382.44
  6. Step 6: Final answer
    x = 268,230.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.