Home / 407,072.36-561,736.96-225,771.28

Finding the Fourth Proportional to 407,072.36, 561,736.96 and 225,771.28

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Solution

The fourth proportional to 407,072.36, 561,736.96 and 225,771.28 is: 311,551.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,072.36 : 561,736.96 = 225,771.28 : x
  2. Step 2: Convert to fraction form
    407,072.36/561,736.96 = 225,771.28/x
  3. Step 3: Cross multiply
    407,072.36x = 561,736.96 × 225,771.28
  4. Step 4: Simplify right side
    407,072.36x = 126,824,070,513.74
  5. Step 5: Solve for x
    x = 126,824,070,513.74/407,072.36
  6. Step 6: Final answer
    x = 311,551.66

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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.