Finding the Fourth Proportional to 342,720.79, 472,805.79 and 206,679.14
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Solution
The fourth proportional to 342,720.79, 472,805.79 and 206,679.14 is: 285,127.42
Step by Step Solution
- Step 1: Write the proportion equation
342,720.79 : 472,805.79 = 206,679.14 : x - Step 2: Convert to fraction form
342,720.79/472,805.79 = 206,679.14/x - Step 3: Cross multiply
342,720.79x = 472,805.79 × 206,679.14 - Step 4: Simplify right side
342,720.79x = 97,719,094,064.22 - Step 5: Solve for x
x = 97,719,094,064.22/342,720.79 - Step 6: Final answer
x = 285,127.42
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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.