Home / 212,595.15-318,893.12-199,604.37

Finding the Fourth Proportional to 212,595.15, 318,893.12 and 199,604.37

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Solution

The fourth proportional to 212,595.15, 318,893.12 and 199,604.37 is: 299,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,595.15 : 318,893.12 = 199,604.37 : x
  2. Step 2: Convert to fraction form
    212,595.15/318,893.12 = 199,604.37/x
  3. Step 3: Cross multiply
    212,595.15x = 318,893.12 × 199,604.37
  4. Step 4: Simplify right side
    212,595.15x = 63,652,458,720.47
  5. Step 5: Solve for x
    x = 63,652,458,720.47/212,595.15
  6. Step 6: Final answer
    x = 299,406.93

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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.