Home / 351,505.10-485,074.61-190,356.46

Finding the Fourth Proportional to 351,505.10, 485,074.61 and 190,356.46

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Solution

The fourth proportional to 351,505.10, 485,074.61 and 190,356.46 is: 262,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,505.10 : 485,074.61 = 190,356.46 : x
  2. Step 2: Convert to fraction form
    351,505.10/485,074.61 = 190,356.46/x
  3. Step 3: Cross multiply
    351,505.10x = 485,074.61 × 190,356.46
  4. Step 4: Simplify right side
    351,505.10x = 92,337,083,170.11
  5. Step 5: Solve for x
    x = 92,337,083,170.11/351,505.10
  6. Step 6: Final answer
    x = 262,690.60

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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.