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Finding the Fourth Proportional to 270,353.63, 405,553.50 and 70,673.69

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Solution

The fourth proportional to 270,353.63, 405,553.50 and 70,673.69 is: 106,016.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,353.63 : 405,553.50 = 70,673.69 : x
  2. Step 2: Convert to fraction form
    270,353.63/405,553.50 = 70,673.69/x
  3. Step 3: Cross multiply
    270,353.63x = 405,553.50 × 70,673.69
  4. Step 4: Simplify right side
    270,353.63x = 28,661,960,309.65
  5. Step 5: Solve for x
    x = 28,661,960,309.65/270,353.63
  6. Step 6: Final answer
    x = 106,016.56

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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.