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Finding the Fourth Proportional to 215,315.96, 324,996.37 and 215,315.96

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Solution

The fourth proportional to 215,315.96, 324,996.37 and 215,315.96 is: 324,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,315.96 : 324,996.37 = 215,315.96 : x
  2. Step 2: Convert to fraction form
    215,315.96/324,996.37 = 215,315.96/x
  3. Step 3: Cross multiply
    215,315.96x = 324,996.37 × 215,315.96
  4. Step 4: Simplify right side
    215,315.96x = 69,976,903,239.79
  5. Step 5: Solve for x
    x = 69,976,903,239.79/215,315.96
  6. Step 6: Final answer
    x = 324,996.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.