Home / 355,945.16-491,199.70-194,797.28

Finding the Fourth Proportional to 355,945.16, 491,199.70 and 194,797.28

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Solution

The fourth proportional to 355,945.16, 491,199.70 and 194,797.28 is: 268,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,945.16 : 491,199.70 = 194,797.28 : x
  2. Step 2: Convert to fraction form
    355,945.16/491,199.70 = 194,797.28/x
  3. Step 3: Cross multiply
    355,945.16x = 491,199.70 × 194,797.28
  4. Step 4: Simplify right side
    355,945.16x = 95,684,365,496.82
  5. Step 5: Solve for x
    x = 95,684,365,496.82/355,945.16
  6. Step 6: Final answer
    x = 268,817.72

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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.