Finding the Fourth Proportional to 309,214.88, 427,575.48 and 245,441.96
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Solution
The fourth proportional to 309,214.88, 427,575.48 and 245,441.96 is: 339,391.70
Step by Step Solution
- Step 1: Write the proportion equation
309,214.88 : 427,575.48 = 245,441.96 : x - Step 2: Convert to fraction form
309,214.88/427,575.48 = 245,441.96/x - Step 3: Cross multiply
309,214.88x = 427,575.48 × 245,441.96 - Step 4: Simplify right side
309,214.88x = 104,944,963,859.14 - Step 5: Solve for x
x = 104,944,963,859.14/309,214.88 - Step 6: Final answer
x = 339,391.70
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1.5x scale
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.