Home / 212,460.32-318,647.94-136,333.49

Finding the Fourth Proportional to 212,460.32, 318,647.94 and 136,333.49

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Solution

The fourth proportional to 212,460.32, 318,647.94 and 136,333.49 is: 204,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,460.32 : 318,647.94 = 136,333.49 : x
  2. Step 2: Convert to fraction form
    212,460.32/318,647.94 = 136,333.49/x
  3. Step 3: Cross multiply
    212,460.32x = 318,647.94 × 136,333.49
  4. Step 4: Simplify right side
    212,460.32x = 43,442,384,148.27
  5. Step 5: Solve for x
    x = 43,442,384,148.27/212,460.32
  6. Step 6: Final answer
    x = 204,472.93

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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.