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Finding the Fourth Proportional to 227,711.58, 342,314.64 and 211,270.20

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Solution

The fourth proportional to 227,711.58, 342,314.64 and 211,270.20 is: 317,598.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,711.58 : 342,314.64 = 211,270.20 : x
  2. Step 2: Convert to fraction form
    227,711.58/342,314.64 = 211,270.20/x
  3. Step 3: Cross multiply
    227,711.58x = 342,314.64 × 211,270.20
  4. Step 4: Simplify right side
    227,711.58x = 72,320,882,455.73
  5. Step 5: Solve for x
    x = 72,320,882,455.73/227,711.58
  6. Step 6: Final answer
    x = 317,598.62

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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.