Home / 308,628.72-462,943.29-131,011.26

Finding the Fourth Proportional to 308,628.72, 462,943.29 and 131,011.26

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Solution

The fourth proportional to 308,628.72, 462,943.29 and 131,011.26 is: 196,516.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,628.72 : 462,943.29 = 131,011.26 : x
  2. Step 2: Convert to fraction form
    308,628.72/462,943.29 = 131,011.26/x
  3. Step 3: Cross multiply
    308,628.72x = 462,943.29 × 131,011.26
  4. Step 4: Simplify right side
    308,628.72x = 60,650,783,731.45
  5. Step 5: Solve for x
    x = 60,650,783,731.45/308,628.72
  6. Step 6: Final answer
    x = 196,516.98

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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.