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Finding the Fourth Proportional to 317,383.05, 475,759.20 and 159,128.49

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Solution

The fourth proportional to 317,383.05, 475,759.20 and 159,128.49 is: 238,534.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,383.05 : 475,759.20 = 159,128.49 : x
  2. Step 2: Convert to fraction form
    317,383.05/475,759.20 = 159,128.49/x
  3. Step 3: Cross multiply
    317,383.05x = 475,759.20 × 159,128.49
  4. Step 4: Simplify right side
    317,383.05x = 75,706,843,099.61
  5. Step 5: Solve for x
    x = 75,706,843,099.61/317,383.05
  6. Step 6: Final answer
    x = 238,534.61

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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.