Home / 212,377.78-318,419.05-93,984.54

Finding the Fourth Proportional to 212,377.78, 318,419.05 and 93,984.54

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Solution

The fourth proportional to 212,377.78, 318,419.05 and 93,984.54 is: 140,911.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,377.78 : 318,419.05 = 93,984.54 : x
  2. Step 2: Convert to fraction form
    212,377.78/318,419.05 = 93,984.54/x
  3. Step 3: Cross multiply
    212,377.78x = 318,419.05 × 93,984.54
  4. Step 4: Simplify right side
    212,377.78x = 29,926,467,941.49
  5. Step 5: Solve for x
    x = 29,926,467,941.49/212,377.78
  6. Step 6: Final answer
    x = 140,911.48

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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.