Home / 378,532.26-522,374.67-208,777.32

Finding the Fourth Proportional to 378,532.26, 522,374.67 and 208,777.32

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Solution

The fourth proportional to 378,532.26, 522,374.67 and 208,777.32 is: 288,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,532.26 : 522,374.67 = 208,777.32 : x
  2. Step 2: Convert to fraction form
    378,532.26/522,374.67 = 208,777.32/x
  3. Step 3: Cross multiply
    378,532.26x = 522,374.67 × 208,777.32
  4. Step 4: Simplify right side
    378,532.26x = 109,059,983,638.48
  5. Step 5: Solve for x
    x = 109,059,983,638.48/378,532.26
  6. Step 6: Final answer
    x = 288,112.78

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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.