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Finding the Fourth Proportional to 355,750.85, 490,947.89 and 194,602.21

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Solution

The fourth proportional to 355,750.85, 490,947.89 and 194,602.21 is: 268,557.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,750.85 : 490,947.89 = 194,602.21 : x
  2. Step 2: Convert to fraction form
    355,750.85/490,947.89 = 194,602.21/x
  3. Step 3: Cross multiply
    355,750.85x = 490,947.89 × 194,602.21
  4. Step 4: Simplify right side
    355,750.85x = 95,539,544,388.84
  5. Step 5: Solve for x
    x = 95,539,544,388.84/355,750.85
  6. Step 6: Final answer
    x = 268,557.46

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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.