Home / 215,330.50-322,998.63-67,586.50

Finding the Fourth Proportional to 215,330.50, 322,998.63 and 67,586.50

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Solution

The fourth proportional to 215,330.50, 322,998.63 and 67,586.50 is: 101,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,330.50 : 322,998.63 = 67,586.50 : x
  2. Step 2: Convert to fraction form
    215,330.50/322,998.63 = 67,586.50/x
  3. Step 3: Cross multiply
    215,330.50x = 322,998.63 × 67,586.50
  4. Step 4: Simplify right side
    215,330.50x = 21,830,346,906.50
  5. Step 5: Solve for x
    x = 21,830,346,906.50/215,330.50
  6. Step 6: Final answer
    x = 101,380.65

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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.