Home / 378,207.48-521,925.24-208,441.56

Finding the Fourth Proportional to 378,207.48, 521,925.24 and 208,441.56

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Solution

The fourth proportional to 378,207.48, 521,925.24 and 208,441.56 is: 287,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,207.48 : 521,925.24 = 208,441.56 : x
  2. Step 2: Convert to fraction form
    378,207.48/521,925.24 = 208,441.56/x
  3. Step 3: Cross multiply
    378,207.48x = 521,925.24 × 208,441.56
  4. Step 4: Simplify right side
    378,207.48x = 108,790,911,228.97
  5. Step 5: Solve for x
    x = 108,790,911,228.97/378,207.48
  6. Step 6: Final answer
    x = 287,648.76

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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.