Home / 286,372.11-395,170.38-165,521.22

Finding the Fourth Proportional to 286,372.11, 395,170.38 and 165,521.22

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Solution

The fourth proportional to 286,372.11, 395,170.38 and 165,521.22 is: 228,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,372.11 : 395,170.38 = 165,521.22 : x
  2. Step 2: Convert to fraction form
    286,372.11/395,170.38 = 165,521.22/x
  3. Step 3: Cross multiply
    286,372.11x = 395,170.38 × 165,521.22
  4. Step 4: Simplify right side
    286,372.11x = 65,409,083,405.46
  5. Step 5: Solve for x
    x = 65,409,083,405.46/286,372.11
  6. Step 6: Final answer
    x = 228,405.91

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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.