Finding the Fourth Proportional to 319,907.48, 441,479.22 and 176,676.68
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Solution
The fourth proportional to 319,907.48, 441,479.22 and 176,676.68 is: 243,817.63
Step by Step Solution
- Step 1: Write the proportion equation
319,907.48 : 441,479.22 = 176,676.68 : x - Step 2: Convert to fraction form
319,907.48/441,479.22 = 176,676.68/x - Step 3: Cross multiply
319,907.48x = 441,479.22 × 176,676.68 - Step 4: Simplify right side
319,907.48x = 77,999,082,878.59 - Step 5: Solve for x
x = 77,999,082,878.59/319,907.48 - Step 6: Final answer
x = 243,817.63
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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.