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Finding the Fourth Proportional to 351,866.87, 485,628.14 and 222,817.13

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Solution

The fourth proportional to 351,866.87, 485,628.14 and 222,817.13 is: 307,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,866.87 : 485,628.14 = 222,817.13 : x
  2. Step 2: Convert to fraction form
    351,866.87/485,628.14 = 222,817.13/x
  3. Step 3: Cross multiply
    351,866.87x = 485,628.14 × 222,817.13
  4. Step 4: Simplify right side
    351,866.87x = 108,206,264,859.81
  5. Step 5: Solve for x
    x = 108,206,264,859.81/351,866.87
  6. Step 6: Final answer
    x = 307,520.47

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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.