Finding the Fourth Proportional to 229,304.19, 316,468.96 and 138,660.81
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Solution
The fourth proportional to 229,304.19, 316,468.96 and 138,660.81 is: 191,369.56
Step by Step Solution
- Step 1: Write the proportion equation
229,304.19 : 316,468.96 = 138,660.81 : x - Step 2: Convert to fraction form
229,304.19/316,468.96 = 138,660.81/x - Step 3: Cross multiply
229,304.19x = 316,468.96 × 138,660.81 - Step 4: Simplify right side
229,304.19x = 43,881,841,913.40 - Step 5: Solve for x
x = 43,881,841,913.40/229,304.19 - Step 6: Final answer
x = 191,369.56
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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.