Finding the Fourth Proportional to 260,082.12, 390,136.69 and 82,603.02
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Solution
The fourth proportional to 260,082.12, 390,136.69 and 82,603.02 is: 123,908.82
Step by Step Solution
- Step 1: Write the proportion equation
260,082.12 : 390,136.69 = 82,603.02 : x - Step 2: Convert to fraction form
260,082.12/390,136.69 = 82,603.02/x - Step 3: Cross multiply
260,082.12x = 390,136.69 × 82,603.02 - Step 4: Simplify right side
260,082.12x = 32,226,469,369.13 - Step 5: Solve for x
x = 32,226,469,369.13/260,082.12 - Step 6: Final answer
x = 123,908.82
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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.