Home / 316,729.26-436,920.75-195,831.90

Finding the Fourth Proportional to 316,729.26, 436,920.75 and 195,831.90

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Solution

The fourth proportional to 316,729.26, 436,920.75 and 195,831.90 is: 270,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,729.26 : 436,920.75 = 195,831.90 : x
  2. Step 2: Convert to fraction form
    316,729.26/436,920.75 = 195,831.90/x
  3. Step 3: Cross multiply
    316,729.26x = 436,920.75 × 195,831.90
  4. Step 4: Simplify right side
    316,729.26x = 85,563,020,621.93
  5. Step 5: Solve for x
    x = 85,563,020,621.93/316,729.26
  6. Step 6: Final answer
    x = 270,145.61

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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.