Home / 276,665.60-414,415.20-247,116.80

Finding the Fourth Proportional to 276,665.60, 414,415.20 and 247,116.80

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Solution

The fourth proportional to 276,665.60, 414,415.20 and 247,116.80 is: 370,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,665.60 : 414,415.20 = 247,116.80 : x
  2. Step 2: Convert to fraction form
    276,665.60/414,415.20 = 247,116.80/x
  3. Step 3: Cross multiply
    276,665.60x = 414,415.20 × 247,116.80
  4. Step 4: Simplify right side
    276,665.60x = 102,408,958,095.36
  5. Step 5: Solve for x
    x = 102,408,958,095.36/276,665.60
  6. Step 6: Final answer
    x = 370,154.29

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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.