Finding the Fourth Proportional to 231,212.84, 319,073.60 and 135,719.53
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Solution
The fourth proportional to 231,212.84, 319,073.60 and 135,719.53 is: 187,292.88
Step by Step Solution
- Step 1: Write the proportion equation
231,212.84 : 319,073.60 = 135,719.53 : x - Step 2: Convert to fraction form
231,212.84/319,073.60 = 135,719.53/x - Step 3: Cross multiply
231,212.84x = 319,073.60 × 135,719.53 - Step 4: Simplify right side
231,212.84x = 43,304,518,569.02 - Step 5: Solve for x
x = 43,304,518,569.02/231,212.84 - Step 6: Final answer
x = 187,292.88
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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.