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Finding the Fourth Proportional to 356,371.63, 491,792.85 and 213,131.67

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Solution

The fourth proportional to 356,371.63, 491,792.85 and 213,131.67 is: 294,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,371.63 : 491,792.85 = 213,131.67 : x
  2. Step 2: Convert to fraction form
    356,371.63/491,792.85 = 213,131.67/x
  3. Step 3: Cross multiply
    356,371.63x = 491,792.85 × 213,131.67
  4. Step 4: Simplify right side
    356,371.63x = 104,816,632,336.67
  5. Step 5: Solve for x
    x = 104,816,632,336.67/356,371.63
  6. Step 6: Final answer
    x = 294,121.70

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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.