Home / 198,840.30-298,269.66-56,695.20

Finding the Fourth Proportional to 198,840.30, 298,269.66 and 56,695.20

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Solution

The fourth proportional to 198,840.30, 298,269.66 and 56,695.20 is: 85,045.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,840.30 : 298,269.66 = 56,695.20 : x
  2. Step 2: Convert to fraction form
    198,840.30/298,269.66 = 56,695.20/x
  3. Step 3: Cross multiply
    198,840.30x = 298,269.66 × 56,695.20
  4. Step 4: Simplify right side
    198,840.30x = 16,910,458,027.63
  5. Step 5: Solve for x
    x = 16,910,458,027.63/198,840.30
  6. Step 6: Final answer
    x = 85,045.43

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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.