Home / 322,836.63-445,394.22-201,931.98

Finding the Fourth Proportional to 322,836.63, 445,394.22 and 201,931.98

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Solution

The fourth proportional to 322,836.63, 445,394.22 and 201,931.98 is: 278,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,836.63 : 445,394.22 = 201,931.98 : x
  2. Step 2: Convert to fraction form
    322,836.63/445,394.22 = 201,931.98/x
  3. Step 3: Cross multiply
    322,836.63x = 445,394.22 × 201,931.98
  4. Step 4: Simplify right side
    322,836.63x = 89,939,336,828.98
  5. Step 5: Solve for x
    x = 89,939,336,828.98/322,836.63
  6. Step 6: Final answer
    x = 278,590.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.