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Finding the Fourth Proportional to 228,661.60, 342,992.40 and 104,002.60

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Solution

The fourth proportional to 228,661.60, 342,992.40 and 104,002.60 is: 156,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,661.60 : 342,992.40 = 104,002.60 : x
  2. Step 2: Convert to fraction form
    228,661.60/342,992.40 = 104,002.60/x
  3. Step 3: Cross multiply
    228,661.60x = 342,992.40 × 104,002.60
  4. Step 4: Simplify right side
    228,661.60x = 35,672,101,380.24
  5. Step 5: Solve for x
    x = 35,672,101,380.24/228,661.60
  6. Step 6: Final answer
    x = 156,003.90

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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.