Home / 211,408.44-317,181.96-78,298.62

Finding the Fourth Proportional to 211,408.44, 317,181.96 and 78,298.62

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Solution

The fourth proportional to 211,408.44, 317,181.96 and 78,298.62 is: 117,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,408.44 : 317,181.96 = 78,298.62 : x
  2. Step 2: Convert to fraction form
    211,408.44/317,181.96 = 78,298.62/x
  3. Step 3: Cross multiply
    211,408.44x = 317,181.96 × 78,298.62
  4. Step 4: Simplify right side
    211,408.44x = 24,834,909,756.90
  5. Step 5: Solve for x
    x = 24,834,909,756.90/211,408.44
  6. Step 6: Final answer
    x = 117,473.60

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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.