Home / 355,280.20-490,272.04-194,140.80

Finding the Fourth Proportional to 355,280.20, 490,272.04 and 194,140.80

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Solution

The fourth proportional to 355,280.20, 490,272.04 and 194,140.80 is: 267,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,280.20 : 490,272.04 = 194,140.80 : x
  2. Step 2: Convert to fraction form
    355,280.20/490,272.04 = 194,140.80/x
  3. Step 3: Cross multiply
    355,280.20x = 490,272.04 × 194,140.80
  4. Step 4: Simplify right side
    355,280.20x = 95,181,806,063.23
  5. Step 5: Solve for x
    x = 95,181,806,063.23/355,280.20
  6. Step 6: Final answer
    x = 267,906.31

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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.