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Finding the Fourth Proportional to 436,831.62, 655,246.65 and 137,338.32

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Solution

The fourth proportional to 436,831.62, 655,246.65 and 137,338.32 is: 206,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,831.62 : 655,246.65 = 137,338.32 : x
  2. Step 2: Convert to fraction form
    436,831.62/655,246.65 = 137,338.32/x
  3. Step 3: Cross multiply
    436,831.62x = 655,246.65 × 137,338.32
  4. Step 4: Simplify right side
    436,831.62x = 89,990,474,096.63
  5. Step 5: Solve for x
    x = 89,990,474,096.63/436,831.62
  6. Step 6: Final answer
    x = 206,007.23

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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.