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Finding the Fourth Proportional to 286,695, 395,620.38 and 159,365.88

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Solution

The fourth proportional to 286,695, 395,620.38 and 159,365.88 is: 219,914.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,695 : 395,620.38 = 159,365.88 : x
  2. Step 2: Convert to fraction form
    286,695/395,620.38 = 159,365.88/x
  3. Step 3: Cross multiply
    286,695x = 395,620.38 × 159,365.88
  4. Step 4: Simplify right side
    286,695x = 63,048,390,004.63
  5. Step 5: Solve for x
    x = 63,048,390,004.63/286,695
  6. Step 6: Final answer
    x = 219,914.51

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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.