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Finding the Fourth Proportional to 351,704.60, 485,350.68 and 190,559.60

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Solution

The fourth proportional to 351,704.60, 485,350.68 and 190,559.60 is: 262,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,704.60 : 485,350.68 = 190,559.60 : x
  2. Step 2: Convert to fraction form
    351,704.60/485,350.68 = 190,559.60/x
  3. Step 3: Cross multiply
    351,704.60x = 485,350.68 × 190,559.60
  4. Step 4: Simplify right side
    351,704.60x = 92,488,229,013.77
  5. Step 5: Solve for x
    x = 92,488,229,013.77/351,704.60
  6. Step 6: Final answer
    x = 262,971.34

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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.