Finding the Fourth Proportional to 223,554.19, 308,506.86 and 121,580.62
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Solution
The fourth proportional to 223,554.19, 308,506.86 and 121,580.62 is: 167,782.39
Step by Step Solution
- Step 1: Write the proportion equation
223,554.19 : 308,506.86 = 121,580.62 : x - Step 2: Convert to fraction form
223,554.19/308,506.86 = 121,580.62/x - Step 3: Cross multiply
223,554.19x = 308,506.86 × 121,580.62 - Step 4: Simplify right side
223,554.19x = 37,508,455,313.05 - Step 5: Solve for x
x = 37,508,455,313.05/223,554.19 - Step 6: Final answer
x = 167,782.39
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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.