Home / 355,271.20-490,259.64-194,131.78

Finding the Fourth Proportional to 355,271.20, 490,259.64 and 194,131.78

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Solution

The fourth proportional to 355,271.20, 490,259.64 and 194,131.78 is: 267,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,271.20 : 490,259.64 = 194,131.78 : x
  2. Step 2: Convert to fraction form
    355,271.20/490,259.64 = 194,131.78/x
  3. Step 3: Cross multiply
    355,271.20x = 490,259.64 × 194,131.78
  4. Step 4: Simplify right side
    355,271.20x = 95,174,976,575.36
  5. Step 5: Solve for x
    x = 95,174,976,575.36/355,271.20
  6. Step 6: Final answer
    x = 267,893.87

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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.