Finding the Fourth Proportional to 331,996.61, 497,781.49 and 218,009.74
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Solution
The fourth proportional to 331,996.61, 497,781.49 and 218,009.74 is: 326,874.46
Step by Step Solution
- Step 1: Write the proportion equation
331,996.61 : 497,781.49 = 218,009.74 : x - Step 2: Convert to fraction form
331,996.61/497,781.49 = 218,009.74/x - Step 3: Cross multiply
331,996.61x = 497,781.49 × 218,009.74 - Step 4: Simplify right side
331,996.61x = 108,521,211,422.24 - Step 5: Solve for x
x = 108,521,211,422.24/331,996.61 - Step 6: Final answer
x = 326,874.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.