Finding the Fourth Proportional to 398,921.33, 550,498.81 and 226,857.99
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Solution
The fourth proportional to 398,921.33, 550,498.81 and 226,857.99 is: 313,056.85
Step by Step Solution
- Step 1: Write the proportion equation
398,921.33 : 550,498.81 = 226,857.99 : x - Step 2: Convert to fraction form
398,921.33/550,498.81 = 226,857.99/x - Step 3: Cross multiply
398,921.33x = 550,498.81 × 226,857.99 - Step 4: Simplify right side
398,921.33x = 124,885,053,533.99 - Step 5: Solve for x
x = 124,885,053,533.99/398,921.33 - Step 6: Final answer
x = 313,056.85
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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.