Home / 286,511.09-395,434.01-165,725.81

Finding the Fourth Proportional to 286,511.09, 395,434.01 and 165,725.81

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Solution

The fourth proportional to 286,511.09, 395,434.01 and 165,725.81 is: 228,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,511.09 : 395,434.01 = 165,725.81 : x
  2. Step 2: Convert to fraction form
    286,511.09/395,434.01 = 165,725.81/x
  3. Step 3: Cross multiply
    286,511.09x = 395,434.01 × 165,725.81
  4. Step 4: Simplify right side
    286,511.09x = 65,533,620,045.94
  5. Step 5: Solve for x
    x = 65,533,620,045.94/286,511.09
  6. Step 6: Final answer
    x = 228,729.78

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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.