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Finding the Fourth Proportional to 286,863.39, 395,885.48 and 159,536.25

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Solution

The fourth proportional to 286,863.39, 395,885.48 and 159,536.25 is: 220,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,863.39 : 395,885.48 = 159,536.25 : x
  2. Step 2: Convert to fraction form
    286,863.39/395,885.48 = 159,536.25/x
  3. Step 3: Cross multiply
    286,863.39x = 395,885.48 × 159,536.25
  4. Step 4: Simplify right side
    286,863.39x = 63,158,084,110.97
  5. Step 5: Solve for x
    x = 63,158,084,110.97/286,863.39
  6. Step 6: Final answer
    x = 220,167.81

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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.