Home / 549,105.40-823,269.30-212,015.80

Finding the Fourth Proportional to 549,105.40, 823,269.30 and 212,015.80

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Solution

The fourth proportional to 549,105.40, 823,269.30 and 212,015.80 is: 317,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,105.40 : 823,269.30 = 212,015.80 : x
  2. Step 2: Convert to fraction form
    549,105.40/823,269.30 = 212,015.80/x
  3. Step 3: Cross multiply
    549,105.40x = 823,269.30 × 212,015.80
  4. Step 4: Simplify right side
    549,105.40x = 174,546,099,254.94
  5. Step 5: Solve for x
    x = 174,546,099,254.94/549,105.40
  6. Step 6: Final answer
    x = 317,873.58

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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.