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Finding the Fourth Proportional to 215,693.46, 323,541 and 65,933.19

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Solution

The fourth proportional to 215,693.46, 323,541 and 65,933.19 is: 98,900.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,693.46 : 323,541 = 65,933.19 : x
  2. Step 2: Convert to fraction form
    215,693.46/323,541 = 65,933.19/x
  3. Step 3: Cross multiply
    215,693.46x = 323,541 × 65,933.19
  4. Step 4: Simplify right side
    215,693.46x = 21,332,090,225.79
  5. Step 5: Solve for x
    x = 21,332,090,225.79/215,693.46
  6. Step 6: Final answer
    x = 98,900.03

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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.