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Finding the Fourth Proportional to 355,548.79, 490,672.59 and 194,394.23

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Solution

The fourth proportional to 355,548.79, 490,672.59 and 194,394.23 is: 268,272.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,548.79 : 490,672.59 = 194,394.23 : x
  2. Step 2: Convert to fraction form
    355,548.79/490,672.59 = 194,394.23/x
  3. Step 3: Cross multiply
    355,548.79x = 490,672.59 × 194,394.23
  4. Step 4: Simplify right side
    355,548.79x = 95,383,918,972.84
  5. Step 5: Solve for x
    x = 95,383,918,972.84/355,548.79
  6. Step 6: Final answer
    x = 268,272.38

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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.