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Finding the Fourth Proportional to 203,223.76, 304,835.67 and 84,830.52

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Solution

The fourth proportional to 203,223.76, 304,835.67 and 84,830.52 is: 127,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,223.76 : 304,835.67 = 84,830.52 : x
  2. Step 2: Convert to fraction form
    203,223.76/304,835.67 = 84,830.52/x
  3. Step 3: Cross multiply
    203,223.76x = 304,835.67 × 84,830.52
  4. Step 4: Simplify right side
    203,223.76x = 25,859,368,400.65
  5. Step 5: Solve for x
    x = 25,859,368,400.65/203,223.76
  6. Step 6: Final answer
    x = 127,245.79

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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.