Home / 355,320.21-490,343.18-194,177.73

Finding the Fourth Proportional to 355,320.21, 490,343.18 and 194,177.73

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Solution

The fourth proportional to 355,320.21, 490,343.18 and 194,177.73 is: 267,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,320.21 : 490,343.18 = 194,177.73 : x
  2. Step 2: Convert to fraction form
    355,320.21/490,343.18 = 194,177.73/x
  3. Step 3: Cross multiply
    355,320.21x = 490,343.18 × 194,177.73
  4. Step 4: Simplify right side
    355,320.21x = 95,213,724,642.49
  5. Step 5: Solve for x
    x = 95,213,724,642.49/355,320.21
  6. Step 6: Final answer
    x = 267,965.97

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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.