Finding the Fourth Proportional to 228,580.80, 315,478.88 and 136,694.08
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Solution
The fourth proportional to 228,580.80, 315,478.88 and 136,694.08 is: 188,660.18
Step by Step Solution
- Step 1: Write the proportion equation
228,580.80 : 315,478.88 = 136,694.08 : x - Step 2: Convert to fraction form
228,580.80/315,478.88 = 136,694.08/x - Step 3: Cross multiply
228,580.80x = 315,478.88 × 136,694.08 - Step 4: Simplify right side
228,580.80x = 43,124,095,261.03 - Step 5: Solve for x
x = 43,124,095,261.03/228,580.80 - Step 6: Final answer
x = 188,660.18
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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.