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Finding the Fourth Proportional to 351,540.07, 485,125.14 and 190,395.12

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Solution

The fourth proportional to 351,540.07, 485,125.14 and 190,395.12 is: 262,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,540.07 : 485,125.14 = 190,395.12 : x
  2. Step 2: Convert to fraction form
    351,540.07/485,125.14 = 190,395.12/x
  3. Step 3: Cross multiply
    351,540.07x = 485,125.14 × 190,395.12
  4. Step 4: Simplify right side
    351,540.07x = 92,365,461,778.52
  5. Step 5: Solve for x
    x = 92,365,461,778.52/351,540.07
  6. Step 6: Final answer
    x = 262,745.19

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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.