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Finding the Fourth Proportional to 317,175.67, 475,689.87 and 189,127.71

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Solution

The fourth proportional to 317,175.67, 475,689.87 and 189,127.71 is: 283,647.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,175.67 : 475,689.87 = 189,127.71 : x
  2. Step 2: Convert to fraction form
    317,175.67/475,689.87 = 189,127.71/x
  3. Step 3: Cross multiply
    317,175.67x = 475,689.87 × 189,127.71
  4. Step 4: Simplify right side
    317,175.67x = 89,966,135,783.30
  5. Step 5: Solve for x
    x = 89,966,135,783.30/317,175.67
  6. Step 6: Final answer
    x = 283,647.66

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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.