Home / 407,197.07-561,999.41-225,967.21

Finding the Fourth Proportional to 407,197.07, 561,999.41 and 225,967.21

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Solution

The fourth proportional to 407,197.07, 561,999.41 and 225,967.21 is: 311,872.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,197.07 : 561,999.41 = 225,967.21 : x
  2. Step 2: Convert to fraction form
    407,197.07/561,999.41 = 225,967.21/x
  3. Step 3: Cross multiply
    407,197.07x = 561,999.41 × 225,967.21
  4. Step 4: Simplify right side
    407,197.07x = 126,993,438,699.35
  5. Step 5: Solve for x
    x = 126,993,438,699.35/407,197.07
  6. Step 6: Final answer
    x = 311,872.18

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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.