Finding the Fourth Proportional to 207,332.80, 310,768.80 and 113,905.60
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Solution
The fourth proportional to 207,332.80, 310,768.80 and 113,905.60 is: 170,731.82
Step by Step Solution
- Step 1: Write the proportion equation
207,332.80 : 310,768.80 = 113,905.60 : x - Step 2: Convert to fraction form
207,332.80/310,768.80 = 113,905.60/x - Step 3: Cross multiply
207,332.80x = 310,768.80 × 113,905.60 - Step 4: Simplify right side
207,332.80x = 35,398,306,625.28 - Step 5: Solve for x
x = 35,398,306,625.28/207,332.80 - Step 6: Final answer
x = 170,731.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.