Finding the Fourth Proportional to 231,487.36, 319,586.40 and 154,023.84
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Solution
The fourth proportional to 231,487.36, 319,586.40 and 154,023.84 is: 212,641.95
Step by Step Solution
- Step 1: Write the proportion equation
231,487.36 : 319,586.40 = 154,023.84 : x - Step 2: Convert to fraction form
231,487.36/319,586.40 = 154,023.84/x - Step 3: Cross multiply
231,487.36x = 319,586.40 × 154,023.84 - Step 4: Simplify right side
231,487.36x = 49,223,924,539.78 - Step 5: Solve for x
x = 49,223,924,539.78/231,487.36 - Step 6: Final answer
x = 212,641.95
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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.