Finding the Fourth Proportional to 258,447.19, 387,670.87 and 106,642.05
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Solution
The fourth proportional to 258,447.19, 387,670.87 and 106,642.05 is: 159,963.11
Step by Step Solution
- Step 1: Write the proportion equation
258,447.19 : 387,670.87 = 106,642.05 : x - Step 2: Convert to fraction form
258,447.19/387,670.87 = 106,642.05/x - Step 3: Cross multiply
258,447.19x = 387,670.87 × 106,642.05 - Step 4: Simplify right side
258,447.19x = 41,342,015,819.65 - Step 5: Solve for x
x = 41,342,015,819.65/258,447.19 - Step 6: Final answer
x = 159,963.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.