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Finding the Fourth Proportional to 331,857.60, 497,948.40 and 154,273.20

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Solution

The fourth proportional to 331,857.60, 497,948.40 and 154,273.20 is: 231,485.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,857.60 : 497,948.40 = 154,273.20 : x
  2. Step 2: Convert to fraction form
    331,857.60/497,948.40 = 154,273.20/x
  3. Step 3: Cross multiply
    331,857.60x = 497,948.40 × 154,273.20
  4. Step 4: Simplify right side
    331,857.60x = 76,820,093,102.88
  5. Step 5: Solve for x
    x = 76,820,093,102.88/331,857.60
  6. Step 6: Final answer
    x = 231,485.11

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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.