Home / 286,378.20-395,178.77-165,527.31

Finding the Fourth Proportional to 286,378.20, 395,178.77 and 165,527.31

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Solution

The fourth proportional to 286,378.20, 395,178.77 and 165,527.31 is: 228,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,378.20 : 395,178.77 = 165,527.31 : x
  2. Step 2: Convert to fraction form
    286,378.20/395,178.77 = 165,527.31/x
  3. Step 3: Cross multiply
    286,378.20x = 395,178.77 × 165,527.31
  4. Step 4: Simplify right side
    286,378.20x = 65,412,877,939.57
  5. Step 5: Solve for x
    x = 65,412,877,939.57/286,378.20
  6. Step 6: Final answer
    x = 228,414.31

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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.