Home / 284,578.75-392,784.15-163,789.80

Finding the Fourth Proportional to 284,578.75, 392,784.15 and 163,789.80

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Solution

The fourth proportional to 284,578.75, 392,784.15 and 163,789.80 is: 226,067.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,578.75 : 392,784.15 = 163,789.80 : x
  2. Step 2: Convert to fraction form
    284,578.75/392,784.15 = 163,789.80/x
  3. Step 3: Cross multiply
    284,578.75x = 392,784.15 × 163,789.80
  4. Step 4: Simplify right side
    284,578.75x = 64,334,037,371.67
  5. Step 5: Solve for x
    x = 64,334,037,371.67/284,578.75
  6. Step 6: Final answer
    x = 226,067.61

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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.