Finding the Fourth Proportional to 319,705.68, 441,162.45 and 176,456.55
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Solution
The fourth proportional to 319,705.68, 441,162.45 and 176,456.55 is: 243,492.71
Step by Step Solution
- Step 1: Write the proportion equation
319,705.68 : 441,162.45 = 176,456.55 : x - Step 2: Convert to fraction form
319,705.68/441,162.45 = 176,456.55/x - Step 3: Cross multiply
319,705.68x = 441,162.45 × 176,456.55 - Step 4: Simplify right side
319,705.68x = 77,846,003,916.55 - Step 5: Solve for x
x = 77,846,003,916.55/319,705.68 - Step 6: Final answer
x = 243,492.71
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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.