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Finding the Fourth Proportional to 317,135.72, 475,630.76 and 189,088.22

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Solution

The fourth proportional to 317,135.72, 475,630.76 and 189,088.22 is: 283,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,135.72 : 475,630.76 = 189,088.22 : x
  2. Step 2: Convert to fraction form
    317,135.72/475,630.76 = 189,088.22/x
  3. Step 3: Cross multiply
    317,135.72x = 475,630.76 × 189,088.22
  4. Step 4: Simplify right side
    317,135.72x = 89,936,175,447.44
  5. Step 5: Solve for x
    x = 89,936,175,447.44/317,135.72
  6. Step 6: Final answer
    x = 283,588.91

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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.