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Finding the Fourth Proportional to 347,857.70, 520,994.37 and 207,325.94

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Solution

The fourth proportional to 347,857.70, 520,994.37 and 207,325.94 is: 310,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,857.70 : 520,994.37 = 207,325.94 : x
  2. Step 2: Convert to fraction form
    347,857.70/520,994.37 = 207,325.94/x
  3. Step 3: Cross multiply
    347,857.70x = 520,994.37 × 207,325.94
  4. Step 4: Simplify right side
    347,857.70x = 108,015,647,494.96
  5. Step 5: Solve for x
    x = 108,015,647,494.96/347,857.70
  6. Step 6: Final answer
    x = 310,516.76

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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.