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Finding the Fourth Proportional to 317,336.17, 475,369.62 and 190,906.78

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Solution

The fourth proportional to 317,336.17, 475,369.62 and 190,906.78 is: 285,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,336.17 : 475,369.62 = 190,906.78 : x
  2. Step 2: Convert to fraction form
    317,336.17/475,369.62 = 190,906.78/x
  3. Step 3: Cross multiply
    317,336.17x = 475,369.62 × 190,906.78
  4. Step 4: Simplify right side
    317,336.17x = 90,751,283,464.02
  5. Step 5: Solve for x
    x = 90,751,283,464.02/317,336.17
  6. Step 6: Final answer
    x = 285,978.38

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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.