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Finding the Fourth Proportional to 298,687.60, 447,739.80 and 267,194.80

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Solution

The fourth proportional to 298,687.60, 447,739.80 and 267,194.80 is: 400,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,687.60 : 447,739.80 = 267,194.80 : x
  2. Step 2: Convert to fraction form
    298,687.60/447,739.80 = 267,194.80/x
  3. Step 3: Cross multiply
    298,687.60x = 447,739.80 × 267,194.80
  4. Step 4: Simplify right side
    298,687.60x = 119,633,746,313.04
  5. Step 5: Solve for x
    x = 119,633,746,313.04/298,687.60
  6. Step 6: Final answer
    x = 400,531.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.