Finding the Fourth Proportional to 258,230.98, 387,368.79 and 71,242.48
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Solution
The fourth proportional to 258,230.98, 387,368.79 and 71,242.48 is: 106,869.88
Step by Step Solution
- Step 1: Write the proportion equation
258,230.98 : 387,368.79 = 71,242.48 : x - Step 2: Convert to fraction form
258,230.98/387,368.79 = 71,242.48/x - Step 3: Cross multiply
258,230.98x = 387,368.79 × 71,242.48 - Step 4: Simplify right side
258,230.98x = 27,597,113,274.20 - Step 5: Solve for x
x = 27,597,113,274.20/258,230.98 - Step 6: Final answer
x = 106,869.88
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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.