Home / 212,945.44-318,893.28-133,863.52

Finding the Fourth Proportional to 212,945.44, 318,893.28 and 133,863.52

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Solution

The fourth proportional to 212,945.44, 318,893.28 and 133,863.52 is: 200,465.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,945.44 : 318,893.28 = 133,863.52 : x
  2. Step 2: Convert to fraction form
    212,945.44/318,893.28 = 133,863.52/x
  3. Step 3: Cross multiply
    212,945.44x = 318,893.28 × 133,863.52
  4. Step 4: Simplify right side
    212,945.44x = 42,688,176,965.15
  5. Step 5: Solve for x
    x = 42,688,176,965.15/212,945.44
  6. Step 6: Final answer
    x = 200,465.33

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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.