Home / 305,285.19-421,318.73-169,362.89

Finding the Fourth Proportional to 305,285.19, 421,318.73 and 169,362.89

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Solution

The fourth proportional to 305,285.19, 421,318.73 and 169,362.89 is: 233,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,285.19 : 421,318.73 = 169,362.89 : x
  2. Step 2: Convert to fraction form
    305,285.19/421,318.73 = 169,362.89/x
  3. Step 3: Cross multiply
    305,285.19x = 421,318.73 × 169,362.89
  4. Step 4: Simplify right side
    305,285.19x = 71,355,757,723.93
  5. Step 5: Solve for x
    x = 71,355,757,723.93/305,285.19
  6. Step 6: Final answer
    x = 233,734.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.