Home / 309,831.36-464,137.92-204,328.32

Finding the Fourth Proportional to 309,831.36, 464,137.92 and 204,328.32

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Solution

The fourth proportional to 309,831.36, 464,137.92 and 204,328.32 is: 306,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,831.36 : 464,137.92 = 204,328.32 : x
  2. Step 2: Convert to fraction form
    309,831.36/464,137.92 = 204,328.32/x
  3. Step 3: Cross multiply
    309,831.36x = 464,137.92 × 204,328.32
  4. Step 4: Simplify right side
    309,831.36x = 94,836,521,441.89
  5. Step 5: Solve for x
    x = 94,836,521,441.89/309,831.36
  6. Step 6: Final answer
    x = 306,090.78

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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.