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Finding the Fourth Proportional to 347,779.02, 479,910.78 and 194,791.08

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Solution

The fourth proportional to 347,779.02, 479,910.78 and 194,791.08 is: 268,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,779.02 : 479,910.78 = 194,791.08 : x
  2. Step 2: Convert to fraction form
    347,779.02/479,910.78 = 194,791.08/x
  3. Step 3: Cross multiply
    347,779.02x = 479,910.78 × 194,791.08
  4. Step 4: Simplify right side
    347,779.02x = 93,482,339,139.84
  5. Step 5: Solve for x
    x = 93,482,339,139.84/347,779.02
  6. Step 6: Final answer
    x = 268,798.10

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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.