Home / 386,741.89-580,140.78-161,876.07

Finding the Fourth Proportional to 386,741.89, 580,140.78 and 161,876.07

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Solution

The fourth proportional to 386,741.89, 580,140.78 and 161,876.07 is: 242,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,741.89 : 580,140.78 = 161,876.07 : x
  2. Step 2: Convert to fraction form
    386,741.89/580,140.78 = 161,876.07/x
  3. Step 3: Cross multiply
    386,741.89x = 580,140.78 × 161,876.07
  4. Step 4: Simplify right side
    386,741.89x = 93,910,909,816.65
  5. Step 5: Solve for x
    x = 93,910,909,816.65/386,741.89
  6. Step 6: Final answer
    x = 242,825.80

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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.