Home / 286,410.20-395,157.12-165,507.44

Finding the Fourth Proportional to 286,410.20, 395,157.12 and 165,507.44

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Solution

The fourth proportional to 286,410.20, 395,157.12 and 165,507.44 is: 228,348.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,410.20 : 395,157.12 = 165,507.44 : x
  2. Step 2: Convert to fraction form
    286,410.20/395,157.12 = 165,507.44/x
  3. Step 3: Cross multiply
    286,410.20x = 395,157.12 × 165,507.44
  4. Step 4: Simplify right side
    286,410.20x = 65,401,443,328.97
  5. Step 5: Solve for x
    x = 65,401,443,328.97/286,410.20
  6. Step 6: Final answer
    x = 228,348.86

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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.