Finding the Fourth Proportional to 229,660.16, 316,960.16 and 129,058.08
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Solution
The fourth proportional to 229,660.16, 316,960.16 and 129,058.08 is: 178,116.53
Step by Step Solution
- Step 1: Write the proportion equation
229,660.16 : 316,960.16 = 129,058.08 : x - Step 2: Convert to fraction form
229,660.16/316,960.16 = 129,058.08/x - Step 3: Cross multiply
229,660.16x = 316,960.16 × 129,058.08 - Step 4: Simplify right side
229,660.16x = 40,906,269,686.09 - Step 5: Solve for x
x = 40,906,269,686.09/229,660.16 - Step 6: Final answer
x = 178,116.53
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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.