Home / 208,384.20-312,576.30-199,636.20

Finding the Fourth Proportional to 208,384.20, 312,576.30 and 199,636.20

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Solution

The fourth proportional to 208,384.20, 312,576.30 and 199,636.20 is: 299,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,384.20 : 312,576.30 = 199,636.20 : x
  2. Step 2: Convert to fraction form
    208,384.20/312,576.30 = 199,636.20/x
  3. Step 3: Cross multiply
    208,384.20x = 312,576.30 × 199,636.20
  4. Step 4: Simplify right side
    208,384.20x = 62,401,544,742.06
  5. Step 5: Solve for x
    x = 62,401,544,742.06/208,384.20
  6. Step 6: Final answer
    x = 299,454.30

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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.