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Finding the Fourth Proportional to 203,047.04, 304,632.90 and 90,821.66

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Solution

The fourth proportional to 203,047.04, 304,632.90 and 90,821.66 is: 136,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,047.04 : 304,632.90 = 90,821.66 : x
  2. Step 2: Convert to fraction form
    203,047.04/304,632.90 = 90,821.66/x
  3. Step 3: Cross multiply
    203,047.04x = 304,632.90 × 90,821.66
  4. Step 4: Simplify right side
    203,047.04x = 27,667,265,668.61
  5. Step 5: Solve for x
    x = 27,667,265,668.61/203,047.04
  6. Step 6: Final answer
    x = 136,260.37

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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.