Home / 389,836.96-537,979.49-228,694.75

Finding the Fourth Proportional to 389,836.96, 537,979.49 and 228,694.75

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Solution

The fourth proportional to 389,836.96, 537,979.49 and 228,694.75 is: 315,601.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,836.96 : 537,979.49 = 228,694.75 : x
  2. Step 2: Convert to fraction form
    389,836.96/537,979.49 = 228,694.75/x
  3. Step 3: Cross multiply
    389,836.96x = 537,979.49 × 228,694.75
  4. Step 4: Simplify right side
    389,836.96x = 123,033,083,339.86
  5. Step 5: Solve for x
    x = 123,033,083,339.86/389,836.96
  6. Step 6: Final answer
    x = 315,601.38

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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.