Home / 215,852.72-323,872.68-115,896.20

Finding the Fourth Proportional to 215,852.72, 323,872.68 and 115,896.20

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Solution

The fourth proportional to 215,852.72, 323,872.68 and 115,896.20 is: 173,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,852.72 : 323,872.68 = 115,896.20 : x
  2. Step 2: Convert to fraction form
    215,852.72/323,872.68 = 115,896.20/x
  3. Step 3: Cross multiply
    215,852.72x = 323,872.68 × 115,896.20
  4. Step 4: Simplify right side
    215,852.72x = 37,535,612,895.82
  5. Step 5: Solve for x
    x = 37,535,612,895.82/215,852.72
  6. Step 6: Final answer
    x = 173,894.56

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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.