Home / 215,709.24-323,354.88-82,486.92

Finding the Fourth Proportional to 215,709.24, 323,354.88 and 82,486.92

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Solution

The fourth proportional to 215,709.24, 323,354.88 and 82,486.92 is: 123,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,709.24 : 323,354.88 = 82,486.92 : x
  2. Step 2: Convert to fraction form
    215,709.24/323,354.88 = 82,486.92/x
  3. Step 3: Cross multiply
    215,709.24x = 323,354.88 × 82,486.92
  4. Step 4: Simplify right side
    215,709.24x = 26,672,548,118.17
  5. Step 5: Solve for x
    x = 26,672,548,118.17/215,709.24
  6. Step 6: Final answer
    x = 123,650.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.