Finding the Fourth Proportional to 212,082.19, 292,679.02 and 115,292.55
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Solution
The fourth proportional to 212,082.19, 292,679.02 and 115,292.55 is: 159,106.76
Step by Step Solution
- Step 1: Write the proportion equation
212,082.19 : 292,679.02 = 115,292.55 : x - Step 2: Convert to fraction form
212,082.19/292,679.02 = 115,292.55/x - Step 3: Cross multiply
212,082.19x = 292,679.02 × 115,292.55 - Step 4: Simplify right side
212,082.19x = 33,743,710,547.30 - Step 5: Solve for x
x = 33,743,710,547.30/212,082.19 - Step 6: Final answer
x = 159,106.76
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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.