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Finding the Fourth Proportional to 351,973.92, 485,722.48 and 190,828.48

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Solution

The fourth proportional to 351,973.92, 485,722.48 and 190,828.48 is: 263,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,973.92 : 485,722.48 = 190,828.48 : x
  2. Step 2: Convert to fraction form
    351,973.92/485,722.48 = 190,828.48/x
  3. Step 3: Cross multiply
    351,973.92x = 485,722.48 × 190,828.48
  4. Step 4: Simplify right side
    351,973.92x = 92,689,682,560.23
  5. Step 5: Solve for x
    x = 92,689,682,560.23/351,973.92
  6. Step 6: Final answer
    x = 263,342.47

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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.