Finding the Fourth Proportional to 316,464.48, 436,721.64 and 173,233.68
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Solution
The fourth proportional to 316,464.48, 436,721.64 and 173,233.68 is: 239,062.84
Step by Step Solution
- Step 1: Write the proportion equation
316,464.48 : 436,721.64 = 173,233.68 : x - Step 2: Convert to fraction form
316,464.48/436,721.64 = 173,233.68/x - Step 3: Cross multiply
316,464.48x = 436,721.64 × 173,233.68 - Step 4: Simplify right side
316,464.48x = 75,654,896,832.84 - Step 5: Solve for x
x = 75,654,896,832.84/316,464.48 - Step 6: Final answer
x = 239,062.84
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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.