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Finding the Fourth Proportional to 308,818.36, 462,326.10 and 190,133.56

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Solution

The fourth proportional to 308,818.36, 462,326.10 and 190,133.56 is: 284,645.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,818.36 : 462,326.10 = 190,133.56 : x
  2. Step 2: Convert to fraction form
    308,818.36/462,326.10 = 190,133.56/x
  3. Step 3: Cross multiply
    308,818.36x = 462,326.10 × 190,133.56
  4. Step 4: Simplify right side
    308,818.36x = 87,903,707,273.92
  5. Step 5: Solve for x
    x = 87,903,707,273.92/308,818.36
  6. Step 6: Final answer
    x = 284,645.34

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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.