Home / 298,945.31-447,918.66-210,039.64

Finding the Fourth Proportional to 298,945.31, 447,918.66 and 210,039.64

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Solution

The fourth proportional to 298,945.31, 447,918.66 and 210,039.64 is: 314,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,945.31 : 447,918.66 = 210,039.64 : x
  2. Step 2: Convert to fraction form
    298,945.31/447,918.66 = 210,039.64/x
  3. Step 3: Cross multiply
    298,945.31x = 447,918.66 × 210,039.64
  4. Step 4: Simplify right side
    298,945.31x = 94,080,672,975.89
  5. Step 5: Solve for x
    x = 94,080,672,975.89/298,945.31
  6. Step 6: Final answer
    x = 314,708.65

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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.