Finding the Fourth Proportional to 212,277.98, 318,301.68 and 105,427.50
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Solution
The fourth proportional to 212,277.98, 318,301.68 and 105,427.50 is: 158,083.99
Step by Step Solution
- Step 1: Write the proportion equation
212,277.98 : 318,301.68 = 105,427.50 : x - Step 2: Convert to fraction form
212,277.98/318,301.68 = 105,427.50/x - Step 3: Cross multiply
212,277.98x = 318,301.68 × 105,427.50 - Step 4: Simplify right side
212,277.98x = 33,557,750,368.20 - Step 5: Solve for x
x = 33,557,750,368.20/212,277.98 - Step 6: Final answer
x = 158,083.99
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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.