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Finding the Fourth Proportional to 351,717.54, 485,358.90 and 200,814.54

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Solution

The fourth proportional to 351,717.54, 485,358.90 and 200,814.54 is: 277,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,717.54 : 485,358.90 = 200,814.54 : x
  2. Step 2: Convert to fraction form
    351,717.54/485,358.90 = 200,814.54/x
  3. Step 3: Cross multiply
    351,717.54x = 485,358.90 × 200,814.54
  4. Step 4: Simplify right side
    351,717.54x = 97,467,124,238.41
  5. Step 5: Solve for x
    x = 97,467,124,238.41/351,717.54
  6. Step 6: Final answer
    x = 277,117.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.