Home / 355,977.32-491,236.65-194,828.90

Finding the Fourth Proportional to 355,977.32, 491,236.65 and 194,828.90

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Solution

The fourth proportional to 355,977.32, 491,236.65 and 194,828.90 is: 268,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,977.32 : 491,236.65 = 194,828.90 : x
  2. Step 2: Convert to fraction form
    355,977.32/491,236.65 = 194,828.90/x
  3. Step 3: Cross multiply
    355,977.32x = 491,236.65 × 194,828.90
  4. Step 4: Simplify right side
    355,977.32x = 95,707,093,703.00
  5. Step 5: Solve for x
    x = 95,707,093,703.00/355,977.32
  6. Step 6: Final answer
    x = 268,857.28

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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.