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Finding the Fourth Proportional to 308,361.36, 462,594.78 and 105,947.76

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Solution

The fourth proportional to 308,361.36, 462,594.78 and 105,947.76 is: 158,939.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,361.36 : 462,594.78 = 105,947.76 : x
  2. Step 2: Convert to fraction form
    308,361.36/462,594.78 = 105,947.76/x
  3. Step 3: Cross multiply
    308,361.36x = 462,594.78 × 105,947.76
  4. Step 4: Simplify right side
    308,361.36x = 49,010,880,728.69
  5. Step 5: Solve for x
    x = 49,010,880,728.69/308,361.36
  6. Step 6: Final answer
    x = 158,939.76

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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.