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Finding the Fourth Proportional to 303,831.53, 419,291.90 and 167,868.62

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Solution

The fourth proportional to 303,831.53, 419,291.90 and 167,868.62 is: 231,661.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,831.53 : 419,291.90 = 167,868.62 : x
  2. Step 2: Convert to fraction form
    303,831.53/419,291.90 = 167,868.62/x
  3. Step 3: Cross multiply
    303,831.53x = 419,291.90 × 167,868.62
  4. Step 4: Simplify right side
    303,831.53x = 70,385,949,694.38
  5. Step 5: Solve for x
    x = 70,385,949,694.38/303,831.53
  6. Step 6: Final answer
    x = 231,661.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.