Finding the Fourth Proportional to 316,462.70, 436,718.97 and 173,231.79
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Solution
The fourth proportional to 316,462.70, 436,718.97 and 173,231.79 is: 239,060.12
Step by Step Solution
- Step 1: Write the proportion equation
316,462.70 : 436,718.97 = 173,231.79 : x - Step 2: Convert to fraction form
316,462.70/436,718.97 = 173,231.79/x - Step 3: Cross multiply
316,462.70x = 436,718.97 × 173,231.79 - Step 4: Simplify right side
316,462.70x = 75,653,608,900.06 - Step 5: Solve for x
x = 75,653,608,900.06/316,462.70 - Step 6: Final answer
x = 239,060.12
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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.