Finding the Fourth Proportional to 228,468.75, 315,243.14 and 147,885.09
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Solution
The fourth proportional to 228,468.75, 315,243.14 and 147,885.09 is: 204,053.11
Step by Step Solution
- Step 1: Write the proportion equation
228,468.75 : 315,243.14 = 147,885.09 : x - Step 2: Convert to fraction form
228,468.75/315,243.14 = 147,885.09/x - Step 3: Cross multiply
228,468.75x = 315,243.14 × 147,885.09 - Step 4: Simplify right side
228,468.75x = 46,619,759,391.36 - Step 5: Solve for x
x = 46,619,759,391.36/228,468.75 - Step 6: Final answer
x = 204,053.11
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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.