Finding the Fourth Proportional to 319,622.76, 441,088.40 and 176,391.84
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Solution
The fourth proportional to 319,622.76, 441,088.40 and 176,391.84 is: 243,425.70
Step by Step Solution
- Step 1: Write the proportion equation
319,622.76 : 441,088.40 = 176,391.84 : x - Step 2: Convert to fraction form
319,622.76/441,088.40 = 176,391.84/x - Step 3: Cross multiply
319,622.76x = 441,088.40 × 176,391.84 - Step 4: Simplify right side
319,622.76x = 77,804,393,596.70 - Step 5: Solve for x
x = 77,804,393,596.70/319,622.76 - Step 6: Final answer
x = 243,425.70
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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.