Finding the Fourth Proportional to 258,231.11, 387,368.98 and 71,242.61
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Solution
The fourth proportional to 258,231.11, 387,368.98 and 71,242.61 is: 106,870.07
Step by Step Solution
- Step 1: Write the proportion equation
258,231.11 : 387,368.98 = 71,242.61 : x - Step 2: Convert to fraction form
258,231.11/387,368.98 = 71,242.61/x - Step 3: Cross multiply
258,231.11x = 387,368.98 × 71,242.61 - Step 4: Simplify right side
258,231.11x = 27,597,177,168.24 - Step 5: Solve for x
x = 27,597,177,168.24/258,231.11 - Step 6: Final answer
x = 106,870.07
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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.