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Finding the Fourth Proportional to 197,234.80, 295,690.20 and 85,001.20

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Solution

The fourth proportional to 197,234.80, 295,690.20 and 85,001.20 is: 127,431.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,234.80 : 295,690.20 = 85,001.20 : x
  2. Step 2: Convert to fraction form
    197,234.80/295,690.20 = 85,001.20/x
  3. Step 3: Cross multiply
    197,234.80x = 295,690.20 × 85,001.20
  4. Step 4: Simplify right side
    197,234.80x = 25,134,021,828.24
  5. Step 5: Solve for x
    x = 25,134,021,828.24/197,234.80
  6. Step 6: Final answer
    x = 127,431.98

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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.