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Finding the Fourth Proportional to 355,437.60, 490,495.14 and 194,293.37

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Solution

The fourth proportional to 355,437.60, 490,495.14 and 194,293.37 is: 268,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,437.60 : 490,495.14 = 194,293.37 : x
  2. Step 2: Convert to fraction form
    355,437.60/490,495.14 = 194,293.37/x
  3. Step 3: Cross multiply
    355,437.60x = 490,495.14 × 194,293.37
  4. Step 4: Simplify right side
    355,437.60x = 95,299,951,266.75
  5. Step 5: Solve for x
    x = 95,299,951,266.75/355,437.60
  6. Step 6: Final answer
    x = 268,120.06

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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.