Home / 305,727.47-421,942.83-184,869.61

Finding the Fourth Proportional to 305,727.47, 421,942.83 and 184,869.61

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Solution

The fourth proportional to 305,727.47, 421,942.83 and 184,869.61 is: 255,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,727.47 : 421,942.83 = 184,869.61 : x
  2. Step 2: Convert to fraction form
    305,727.47/421,942.83 = 184,869.61/x
  3. Step 3: Cross multiply
    305,727.47x = 421,942.83 × 184,869.61
  4. Step 4: Simplify right side
    305,727.47x = 78,004,406,424.40
  5. Step 5: Solve for x
    x = 78,004,406,424.40/305,727.47
  6. Step 6: Final answer
    x = 255,143.60

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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.