Finding the Fourth Proportional to 223,782.56, 308,828.08 and 121,803.09
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Solution
The fourth proportional to 223,782.56, 308,828.08 and 121,803.09 is: 168,092.69
Step by Step Solution
- Step 1: Write the proportion equation
223,782.56 : 308,828.08 = 121,803.09 : x - Step 2: Convert to fraction form
223,782.56/308,828.08 = 121,803.09/x - Step 3: Cross multiply
223,782.56x = 308,828.08 × 121,803.09 - Step 4: Simplify right side
223,782.56x = 37,616,212,731.77 - Step 5: Solve for x
x = 37,616,212,731.77/223,782.56 - Step 6: Final answer
x = 168,092.69
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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.