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Finding the Fourth Proportional to 355,359.60, 490,348.88 and 228,207.44

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Solution

The fourth proportional to 355,359.60, 490,348.88 and 228,207.44 is: 314,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,359.60 : 490,348.88 = 228,207.44 : x
  2. Step 2: Convert to fraction form
    355,359.60/490,348.88 = 228,207.44/x
  3. Step 3: Cross multiply
    355,359.60x = 490,348.88 × 228,207.44
  4. Step 4: Simplify right side
    355,359.60x = 111,901,262,611.67
  5. Step 5: Solve for x
    x = 111,901,262,611.67/355,359.60
  6. Step 6: Final answer
    x = 314,895.85

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1.5x scale

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.