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Finding the Fourth Proportional to 355,395.02, 490,443.93 and 194,249.97

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Solution

The fourth proportional to 355,395.02, 490,443.93 and 194,249.97 is: 268,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,395.02 : 490,443.93 = 194,249.97 : x
  2. Step 2: Convert to fraction form
    355,395.02/490,443.93 = 194,249.97/x
  3. Step 3: Cross multiply
    355,395.02x = 490,443.93 × 194,249.97
  4. Step 4: Simplify right side
    355,395.02x = 95,268,718,689.18
  5. Step 5: Solve for x
    x = 95,268,718,689.18/355,395.02
  6. Step 6: Final answer
    x = 268,064.31

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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.