Finding the Fourth Proportional to 223,660.94, 308,660.58 and 128,186.06
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Solution
The fourth proportional to 223,660.94, 308,660.58 and 128,186.06 is: 176,901.62
Step by Step Solution
- Step 1: Write the proportion equation
223,660.94 : 308,660.58 = 128,186.06 : x - Step 2: Convert to fraction form
223,660.94/308,660.58 = 128,186.06/x - Step 3: Cross multiply
223,660.94x = 308,660.58 × 128,186.06 - Step 4: Simplify right side
223,660.94x = 39,565,982,084.21 - Step 5: Solve for x
x = 39,565,982,084.21/223,660.94 - Step 6: Final answer
x = 176,901.62
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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.