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Finding the Fourth Proportional to 270,125.94, 405,211.92 and 80,574.09

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Solution

The fourth proportional to 270,125.94, 405,211.92 and 80,574.09 is: 120,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,125.94 : 405,211.92 = 80,574.09 : x
  2. Step 2: Convert to fraction form
    270,125.94/405,211.92 = 80,574.09/x
  3. Step 3: Cross multiply
    270,125.94x = 405,211.92 × 80,574.09
  4. Step 4: Simplify right side
    270,125.94x = 32,649,582,168.77
  5. Step 5: Solve for x
    x = 32,649,582,168.77/270,125.94
  6. Step 6: Final answer
    x = 120,868.00

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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.