Finding the Fourth Proportional to 319,316.58, 440,624.61 and 176,072.94
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Solution
The fourth proportional to 319,316.58, 440,624.61 and 176,072.94 is: 242,962.86
Step by Step Solution
- Step 1: Write the proportion equation
319,316.58 : 440,624.61 = 176,072.94 : x - Step 2: Convert to fraction form
319,316.58/440,624.61 = 176,072.94/x - Step 3: Cross multiply
319,316.58x = 440,624.61 × 176,072.94 - Step 4: Simplify right side
319,316.58x = 77,582,070,519.05 - Step 5: Solve for x
x = 77,582,070,519.05/319,316.58 - Step 6: Final answer
x = 242,962.86
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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.