Finding the Fourth Proportional to 309,984.14, 427,668.05 and 202,616.12
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Solution
The fourth proportional to 309,984.14, 427,668.05 and 202,616.12 is: 279,538.30
Step by Step Solution
- Step 1: Write the proportion equation
309,984.14 : 427,668.05 = 202,616.12 : x - Step 2: Convert to fraction form
309,984.14/427,668.05 = 202,616.12/x - Step 3: Cross multiply
309,984.14x = 427,668.05 × 202,616.12 - Step 4: Simplify right side
309,984.14x = 86,652,439,307.17 - Step 5: Solve for x
x = 86,652,439,307.17/309,984.14 - Step 6: Final answer
x = 279,538.30
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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.