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Finding the Fourth Proportional to 355,679.60, 534,133.80 and 189,791.60

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Solution

The fourth proportional to 355,679.60, 534,133.80 and 189,791.60 is: 285,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,679.60 : 534,133.80 = 189,791.60 : x
  2. Step 2: Convert to fraction form
    355,679.60/534,133.80 = 189,791.60/x
  3. Step 3: Cross multiply
    355,679.60x = 534,133.80 × 189,791.60
  4. Step 4: Simplify right side
    355,679.60x = 101,374,108,516.08
  5. Step 5: Solve for x
    x = 101,374,108,516.08/355,679.60
  6. Step 6: Final answer
    x = 285,015.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.