Finding the Fourth Proportional to 229,569.96, 316,804.86 and 128,967.96
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Solution
The fourth proportional to 229,569.96, 316,804.86 and 128,967.96 is: 177,974.84
Step by Step Solution
- Step 1: Write the proportion equation
229,569.96 : 316,804.86 = 128,967.96 : x - Step 2: Convert to fraction form
229,569.96/316,804.86 = 128,967.96/x - Step 3: Cross multiply
229,569.96x = 316,804.86 × 128,967.96 - Step 4: Simplify right side
229,569.96x = 40,857,676,512.29 - Step 5: Solve for x
x = 40,857,676,512.29/229,569.96 - Step 6: Final answer
x = 177,974.84
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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.