Home / 407,198.07-562,000.79-225,968.21

Finding the Fourth Proportional to 407,198.07, 562,000.79 and 225,968.21

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Solution

The fourth proportional to 407,198.07, 562,000.79 and 225,968.21 is: 311,873.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,198.07 : 562,000.79 = 225,968.21 : x
  2. Step 2: Convert to fraction form
    407,198.07/562,000.79 = 225,968.21/x
  3. Step 3: Cross multiply
    407,198.07x = 562,000.79 × 225,968.21
  4. Step 4: Simplify right side
    407,198.07x = 126,994,312,534.89
  5. Step 5: Solve for x
    x = 126,994,312,534.89/407,198.07
  6. Step 6: Final answer
    x = 311,873.56

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1.5x scale

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.