Home / 378,664.47-522,556.94-208,898.60

Finding the Fourth Proportional to 378,664.47, 522,556.94 and 208,898.60

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Solution

The fourth proportional to 378,664.47, 522,556.94 and 208,898.60 is: 288,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,664.47 : 522,556.94 = 208,898.60 : x
  2. Step 2: Convert to fraction form
    378,664.47/522,556.94 = 208,898.60/x
  3. Step 3: Cross multiply
    378,664.47x = 522,556.94 × 208,898.60
  4. Step 4: Simplify right side
    378,664.47x = 109,161,409,920.69
  5. Step 5: Solve for x
    x = 109,161,409,920.69/378,664.47
  6. Step 6: Final answer
    x = 288,280.04

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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.