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Finding the Fourth Proportional to 270,365.20, 405,570.81 and 70,685.27

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Solution

The fourth proportional to 270,365.20, 405,570.81 and 70,685.27 is: 106,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,365.20 : 405,570.81 = 70,685.27 : x
  2. Step 2: Convert to fraction form
    270,365.20/405,570.81 = 70,685.27/x
  3. Step 3: Cross multiply
    270,365.20x = 405,570.81 × 70,685.27
  4. Step 4: Simplify right side
    270,365.20x = 28,667,880,826.41
  5. Step 5: Solve for x
    x = 28,667,880,826.41/270,365.20
  6. Step 6: Final answer
    x = 106,033.92

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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.