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Finding the Fourth Proportional to 227,227.20, 340,840.80 and 143,246.40

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Solution

The fourth proportional to 227,227.20, 340,840.80 and 143,246.40 is: 214,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,227.20 : 340,840.80 = 143,246.40 : x
  2. Step 2: Convert to fraction form
    227,227.20/340,840.80 = 143,246.40/x
  3. Step 3: Cross multiply
    227,227.20x = 340,840.80 × 143,246.40
  4. Step 4: Simplify right side
    227,227.20x = 48,824,217,573.12
  5. Step 5: Solve for x
    x = 48,824,217,573.12/227,227.20
  6. Step 6: Final answer
    x = 214,869.60

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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.