Finding the Fourth Proportional to 212,764.87, 293,616.11 and 117,271.94
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Solution
The fourth proportional to 212,764.87, 293,616.11 and 117,271.94 is: 161,835.61
Step by Step Solution
- Step 1: Write the proportion equation
212,764.87 : 293,616.11 = 117,271.94 : x - Step 2: Convert to fraction form
212,764.87/293,616.11 = 117,271.94/x - Step 3: Cross multiply
212,764.87x = 293,616.11 × 117,271.94 - Step 4: Simplify right side
212,764.87x = 34,432,931,862.17 - Step 5: Solve for x
x = 34,432,931,862.17/212,764.87 - Step 6: Final answer
x = 161,835.61
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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.