Home / 286,794.72-395,778.24-159,471.36

Finding the Fourth Proportional to 286,794.72, 395,778.24 and 159,471.36

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Solution

The fourth proportional to 286,794.72, 395,778.24 and 159,471.36 is: 220,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,794.72 : 395,778.24 = 159,471.36 : x
  2. Step 2: Convert to fraction form
    286,794.72/395,778.24 = 159,471.36/x
  3. Step 3: Cross multiply
    286,794.72x = 395,778.24 × 159,471.36
  4. Step 4: Simplify right side
    286,794.72x = 63,115,294,191.21
  5. Step 5: Solve for x
    x = 63,115,294,191.21/286,794.72
  6. Step 6: Final answer
    x = 220,071.33

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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.