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Finding the Fourth Proportional to 298,200.80, 447,301.20 and 295,576.40

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Solution

The fourth proportional to 298,200.80, 447,301.20 and 295,576.40 is: 443,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,200.80 : 447,301.20 = 295,576.40 : x
  2. Step 2: Convert to fraction form
    298,200.80/447,301.20 = 295,576.40/x
  3. Step 3: Cross multiply
    298,200.80x = 447,301.20 × 295,576.40
  4. Step 4: Simplify right side
    298,200.80x = 132,211,678,411.68
  5. Step 5: Solve for x
    x = 132,211,678,411.68/298,200.80
  6. Step 6: Final answer
    x = 443,364.60

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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.