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Finding the Fourth Proportional to 355,293.15, 490,298.61 and 194,144.49

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Solution

The fourth proportional to 355,293.15, 490,298.61 and 194,144.49 is: 267,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,293.15 : 490,298.61 = 194,144.49 : x
  2. Step 2: Convert to fraction form
    355,293.15/490,298.61 = 194,144.49/x
  3. Step 3: Cross multiply
    355,293.15x = 490,298.61 × 194,144.49
  4. Step 4: Simplify right side
    355,293.15x = 95,188,773,586.16
  5. Step 5: Solve for x
    x = 95,188,773,586.16/355,293.15
  6. Step 6: Final answer
    x = 267,916.15

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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.