Home / 378,372.24-522,157.32-208,612.56

Finding the Fourth Proportional to 378,372.24, 522,157.32 and 208,612.56

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Solution

The fourth proportional to 378,372.24, 522,157.32 and 208,612.56 is: 287,887.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,372.24 : 522,157.32 = 208,612.56 : x
  2. Step 2: Convert to fraction form
    378,372.24/522,157.32 = 208,612.56/x
  3. Step 3: Cross multiply
    378,372.24x = 522,157.32 × 208,612.56
  4. Step 4: Simplify right side
    378,372.24x = 108,928,575,247.94
  5. Step 5: Solve for x
    x = 108,928,575,247.94/378,372.24
  6. Step 6: Final answer
    x = 287,887.33

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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.