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Finding the Fourth Proportional to 355,542.72, 490,657.68 and 194,404.56

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Solution

The fourth proportional to 355,542.72, 490,657.68 and 194,404.56 is: 268,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,542.72 : 490,657.68 = 194,404.56 : x
  2. Step 2: Convert to fraction form
    355,542.72/490,657.68 = 194,404.56/x
  3. Step 3: Cross multiply
    355,542.72x = 490,657.68 × 194,404.56
  4. Step 4: Simplify right side
    355,542.72x = 95,386,090,391.02
  5. Step 5: Solve for x
    x = 95,386,090,391.02/355,542.72
  6. Step 6: Final answer
    x = 268,283.06

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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.