Home / 354,092.40-531,138.60-228,121.20

Finding the Fourth Proportional to 354,092.40, 531,138.60 and 228,121.20

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Solution

The fourth proportional to 354,092.40, 531,138.60 and 228,121.20 is: 342,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,092.40 : 531,138.60 = 228,121.20 : x
  2. Step 2: Convert to fraction form
    354,092.40/531,138.60 = 228,121.20/x
  3. Step 3: Cross multiply
    354,092.40x = 531,138.60 × 228,121.20
  4. Step 4: Simplify right side
    354,092.40x = 121,163,974,798.32
  5. Step 5: Solve for x
    x = 121,163,974,798.32/354,092.40
  6. Step 6: Final answer
    x = 342,181.80

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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.