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Finding the Fourth Proportional to 203,271.12, 304,851.60 and 84,917.70

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Solution

The fourth proportional to 203,271.12, 304,851.60 and 84,917.70 is: 127,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,271.12 : 304,851.60 = 84,917.70 : x
  2. Step 2: Convert to fraction form
    203,271.12/304,851.60 = 84,917.70/x
  3. Step 3: Cross multiply
    203,271.12x = 304,851.60 × 84,917.70
  4. Step 4: Simplify right side
    203,271.12x = 25,887,296,713.32
  5. Step 5: Solve for x
    x = 25,887,296,713.32/203,271.12
  6. Step 6: Final answer
    x = 127,353.54

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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.