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Finding the Fourth Proportional to 347,790.38, 479,950.72 and 196,887.38

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Solution

The fourth proportional to 347,790.38, 479,950.72 and 196,887.38 is: 271,704.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,790.38 : 479,950.72 = 196,887.38 : x
  2. Step 2: Convert to fraction form
    347,790.38/479,950.72 = 196,887.38/x
  3. Step 3: Cross multiply
    347,790.38x = 479,950.72 × 196,887.38
  4. Step 4: Simplify right side
    347,790.38x = 94,496,236,897.94
  5. Step 5: Solve for x
    x = 94,496,236,897.94/347,790.38
  6. Step 6: Final answer
    x = 271,704.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.