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Finding the Fourth Proportional to 203,628.38, 305,450.80 and 96,957.45

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Solution

The fourth proportional to 203,628.38, 305,450.80 and 96,957.45 is: 145,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,628.38 : 305,450.80 = 96,957.45 : x
  2. Step 2: Convert to fraction form
    203,628.38/305,450.80 = 96,957.45/x
  3. Step 3: Cross multiply
    203,628.38x = 305,450.80 × 96,957.45
  4. Step 4: Simplify right side
    203,628.38x = 29,615,730,426.07
  5. Step 5: Solve for x
    x = 29,615,730,426.07/203,628.38
  6. Step 6: Final answer
    x = 145,440.10

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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.