Home / 351,615.16-485,231.26-190,470.21

Finding the Fourth Proportional to 351,615.16, 485,231.26 and 190,470.21

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Solution

The fourth proportional to 351,615.16, 485,231.26 and 190,470.21 is: 262,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,615.16 : 485,231.26 = 190,470.21 : x
  2. Step 2: Convert to fraction form
    351,615.16/485,231.26 = 190,470.21/x
  3. Step 3: Cross multiply
    351,615.16x = 485,231.26 × 190,470.21
  4. Step 4: Simplify right side
    351,615.16x = 92,422,099,990.76
  5. Step 5: Solve for x
    x = 92,422,099,990.76/351,615.16
  6. Step 6: Final answer
    x = 262,850.16

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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.