Finding the Fourth Proportional to 319,558.64, 440,992.50 and 176,318.78
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Solution
The fourth proportional to 319,558.64, 440,992.50 and 176,318.78 is: 243,320.79
Step by Step Solution
- Step 1: Write the proportion equation
319,558.64 : 440,992.50 = 176,318.78 : x - Step 2: Convert to fraction form
319,558.64/440,992.50 = 176,318.78/x - Step 3: Cross multiply
319,558.64x = 440,992.50 × 176,318.78 - Step 4: Simplify right side
319,558.64x = 77,755,259,589.15 - Step 5: Solve for x
x = 77,755,259,589.15/319,558.64 - Step 6: Final answer
x = 243,320.79
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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.