Finding the Fourth Proportional to 309,296.88, 427,688.64 and 245,524.08
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Solution
The fourth proportional to 309,296.88, 427,688.64 and 245,524.08 is: 339,505.07
Step by Step Solution
- Step 1: Write the proportion equation
309,296.88 : 427,688.64 = 245,524.08 : x - Step 2: Convert to fraction form
309,296.88/427,688.64 = 245,524.08/x - Step 3: Cross multiply
309,296.88x = 427,688.64 × 245,524.08 - Step 4: Simplify right side
309,296.88x = 105,007,859,862.45 - Step 5: Solve for x
x = 105,007,859,862.45/309,296.88 - Step 6: Final answer
x = 339,505.07
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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.