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Finding the Fourth Proportional to 227,143.70, 340,715.55 and 205,025.30

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Solution

The fourth proportional to 227,143.70, 340,715.55 and 205,025.30 is: 307,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,143.70 : 340,715.55 = 205,025.30 : x
  2. Step 2: Convert to fraction form
    227,143.70/340,715.55 = 205,025.30/x
  3. Step 3: Cross multiply
    227,143.70x = 340,715.55 × 205,025.30
  4. Step 4: Simplify right side
    227,143.70x = 69,855,307,853.42
  5. Step 5: Solve for x
    x = 69,855,307,853.42/227,143.70
  6. Step 6: Final answer
    x = 307,537.95

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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.