Home / 309,138.28-462,344.46-269,113.48

Finding the Fourth Proportional to 309,138.28, 462,344.46 and 269,113.48

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Solution

The fourth proportional to 309,138.28, 462,344.46 and 269,113.48 is: 402,483.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,138.28 : 462,344.46 = 269,113.48 : x
  2. Step 2: Convert to fraction form
    309,138.28/462,344.46 = 269,113.48/x
  3. Step 3: Cross multiply
    309,138.28x = 462,344.46 × 269,113.48
  4. Step 4: Simplify right side
    309,138.28x = 124,423,126,589.32
  5. Step 5: Solve for x
    x = 124,423,126,589.32/309,138.28
  6. Step 6: Final answer
    x = 402,483.73

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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.