Home / 286,140.85-394,893.05-165,287.23

Finding the Fourth Proportional to 286,140.85, 394,893.05 and 165,287.23

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Solution

The fourth proportional to 286,140.85, 394,893.05 and 165,287.23 is: 228,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,140.85 : 394,893.05 = 165,287.23 : x
  2. Step 2: Convert to fraction form
    286,140.85/394,893.05 = 165,287.23/x
  3. Step 3: Cross multiply
    286,140.85x = 394,893.05 × 165,287.23
  4. Step 4: Simplify right side
    286,140.85x = 65,270,779,253.23
  5. Step 5: Solve for x
    x = 65,270,779,253.23/286,140.85
  6. Step 6: Final answer
    x = 228,107.17

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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.