Home / 355,266.72-490,271.52-194,121.75

Finding the Fourth Proportional to 355,266.72, 490,271.52 and 194,121.75

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Solution

The fourth proportional to 355,266.72, 490,271.52 and 194,121.75 is: 267,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,266.72 : 490,271.52 = 194,121.75 : x
  2. Step 2: Convert to fraction form
    355,266.72/490,271.52 = 194,121.75/x
  3. Step 3: Cross multiply
    355,266.72x = 490,271.52 × 194,121.75
  4. Step 4: Simplify right side
    355,266.72x = 95,172,365,437.56
  5. Step 5: Solve for x
    x = 95,172,365,437.56/355,266.72
  6. Step 6: Final answer
    x = 267,889.90

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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.