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Finding the Fourth Proportional to 356,556.25, 492,051.39 and 195,407.76

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Solution

The fourth proportional to 356,556.25, 492,051.39 and 195,407.76 is: 269,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,556.25 : 492,051.39 = 195,407.76 : x
  2. Step 2: Convert to fraction form
    356,556.25/492,051.39 = 195,407.76/x
  3. Step 3: Cross multiply
    356,556.25x = 492,051.39 × 195,407.76
  4. Step 4: Simplify right side
    356,556.25x = 96,150,659,924.79
  5. Step 5: Solve for x
    x = 96,150,659,924.79/356,556.25
  6. Step 6: Final answer
    x = 269,664.78

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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.