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Finding the Fourth Proportional to 595,115, 892,677.36 and 221,138

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Solution

The fourth proportional to 595,115, 892,677.36 and 221,138 is: 331,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,115 : 892,677.36 = 221,138 : x
  2. Step 2: Convert to fraction form
    595,115/892,677.36 = 221,138/x
  3. Step 3: Cross multiply
    595,115x = 892,677.36 × 221,138
  4. Step 4: Simplify right side
    595,115x = 197,404,886,035.68
  5. Step 5: Solve for x
    x = 197,404,886,035.68/595,115
  6. Step 6: Final answer
    x = 331,708.81

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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.