Home / 309,137.28-462,342.96-269,112.48

Finding the Fourth Proportional to 309,137.28, 462,342.96 and 269,112.48

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Solution

The fourth proportional to 309,137.28, 462,342.96 and 269,112.48 is: 402,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,137.28 : 462,342.96 = 269,112.48 : x
  2. Step 2: Convert to fraction form
    309,137.28/462,342.96 = 269,112.48/x
  3. Step 3: Cross multiply
    309,137.28x = 462,342.96 × 269,112.48
  4. Step 4: Simplify right side
    309,137.28x = 124,422,260,576.14
  5. Step 5: Solve for x
    x = 124,422,260,576.14/309,137.28
  6. Step 6: Final answer
    x = 402,482.23

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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.