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Finding the Fourth Proportional to 370,314.20, 555,471.30 and 228,596.60

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Solution

The fourth proportional to 370,314.20, 555,471.30 and 228,596.60 is: 342,894.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,314.20 : 555,471.30 = 228,596.60 : x
  2. Step 2: Convert to fraction form
    370,314.20/555,471.30 = 228,596.60/x
  3. Step 3: Cross multiply
    370,314.20x = 555,471.30 × 228,596.60
  4. Step 4: Simplify right side
    370,314.20x = 126,978,850,577.58
  5. Step 5: Solve for x
    x = 126,978,850,577.58/370,314.20
  6. Step 6: Final answer
    x = 342,894.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.