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Finding the Fourth Proportional to 317,625.90, 476,366.09 and 189,578.31

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Solution

The fourth proportional to 317,625.90, 476,366.09 and 189,578.31 is: 284,324.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,625.90 : 476,366.09 = 189,578.31 : x
  2. Step 2: Convert to fraction form
    317,625.90/476,366.09 = 189,578.31/x
  3. Step 3: Cross multiply
    317,625.90x = 476,366.09 × 189,578.31
  4. Step 4: Simplify right side
    317,625.90x = 90,308,677,335.62
  5. Step 5: Solve for x
    x = 90,308,677,335.62/317,625.90
  6. Step 6: Final answer
    x = 284,324.03

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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.