Home / 355,748.85-490,945.13-194,600.21

Finding the Fourth Proportional to 355,748.85, 490,945.13 and 194,600.21

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Solution

The fourth proportional to 355,748.85, 490,945.13 and 194,600.21 is: 268,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,748.85 : 490,945.13 = 194,600.21 : x
  2. Step 2: Convert to fraction form
    355,748.85/490,945.13 = 194,600.21/x
  3. Step 3: Cross multiply
    355,748.85x = 490,945.13 × 194,600.21
  4. Step 4: Simplify right side
    355,748.85x = 95,538,025,396.48
  5. Step 5: Solve for x
    x = 95,538,025,396.48/355,748.85
  6. Step 6: Final answer
    x = 268,554.70

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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.