Home / 378,191.10-521,923.14-208,425.24

Finding the Fourth Proportional to 378,191.10, 521,923.14 and 208,425.24

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Solution

The fourth proportional to 378,191.10, 521,923.14 and 208,425.24 is: 287,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,191.10 : 521,923.14 = 208,425.24 : x
  2. Step 2: Convert to fraction form
    378,191.10/521,923.14 = 208,425.24/x
  3. Step 3: Cross multiply
    378,191.10x = 521,923.14 × 208,425.24
  4. Step 4: Simplify right side
    378,191.10x = 108,781,955,716.05
  5. Step 5: Solve for x
    x = 108,781,955,716.05/378,191.10
  6. Step 6: Final answer
    x = 287,637.53

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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.