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Finding the Fourth Proportional to 270,658.35, 405,958.37 and 70,998.75

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Solution

The fourth proportional to 270,658.35, 405,958.37 and 70,998.75 is: 106,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,658.35 : 405,958.37 = 70,998.75 : x
  2. Step 2: Convert to fraction form
    270,658.35/405,958.37 = 70,998.75/x
  3. Step 3: Cross multiply
    270,658.35x = 405,958.37 × 70,998.75
  4. Step 4: Simplify right side
    270,658.35x = 28,822,536,467.04
  5. Step 5: Solve for x
    x = 28,822,536,467.04/270,658.35
  6. Step 6: Final answer
    x = 106,490.48

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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.