Finding the Fourth Proportional to 319,843.20, 441,381.72 and 176,602.08
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Solution
The fourth proportional to 319,843.20, 441,381.72 and 176,602.08 is: 243,709.82
Step by Step Solution
- Step 1: Write the proportion equation
319,843.20 : 441,381.72 = 176,602.08 : x - Step 2: Convert to fraction form
319,843.20/441,381.72 = 176,602.08/x - Step 3: Cross multiply
319,843.20x = 441,381.72 × 176,602.08 - Step 4: Simplify right side
319,843.20x = 77,948,929,825.98 - Step 5: Solve for x
x = 77,948,929,825.98/319,843.20 - Step 6: Final answer
x = 243,709.82
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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.