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Finding the Fourth Proportional to 203,474.75, 304,902.27 and 103,485.11

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Solution

The fourth proportional to 203,474.75, 304,902.27 and 103,485.11 is: 155,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,474.75 : 304,902.27 = 103,485.11 : x
  2. Step 2: Convert to fraction form
    203,474.75/304,902.27 = 103,485.11/x
  3. Step 3: Cross multiply
    203,474.75x = 304,902.27 × 103,485.11
  4. Step 4: Simplify right side
    203,474.75x = 31,552,844,950.20
  5. Step 5: Solve for x
    x = 31,552,844,950.20/203,474.75
  6. Step 6: Final answer
    x = 155,070.08

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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.