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Finding the Fourth Proportional to 355,368.70, 490,408.83 and 194,223.75

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Solution

The fourth proportional to 355,368.70, 490,408.83 and 194,223.75 is: 268,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,368.70 : 490,408.83 = 194,223.75 : x
  2. Step 2: Convert to fraction form
    355,368.70/490,408.83 = 194,223.75/x
  3. Step 3: Cross multiply
    355,368.70x = 490,408.83 × 194,223.75
  4. Step 4: Simplify right side
    355,368.70x = 95,249,041,995.71
  5. Step 5: Solve for x
    x = 95,249,041,995.71/355,368.70
  6. Step 6: Final answer
    x = 268,028.79

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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.