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Finding the Fourth Proportional to 355,267.70, 490,596.84 and 228,164.72

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Solution

The fourth proportional to 355,267.70, 490,596.84 and 228,164.72 is: 315,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,267.70 : 490,596.84 = 228,164.72 : x
  2. Step 2: Convert to fraction form
    355,267.70/490,596.84 = 228,164.72/x
  3. Step 3: Cross multiply
    355,267.70x = 490,596.84 × 228,164.72
  4. Step 4: Simplify right side
    355,267.70x = 111,936,890,631.49
  5. Step 5: Solve for x
    x = 111,936,890,631.49/355,267.70
  6. Step 6: Final answer
    x = 315,077.59

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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.