Finding the Fourth Proportional to 319,867.94, 479,276.76 and 109,391.06
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Solution
The fourth proportional to 319,867.94, 479,276.76 and 109,391.06 is: 163,906.99
Step by Step Solution
- Step 1: Write the proportion equation
319,867.94 : 479,276.76 = 109,391.06 : x - Step 2: Convert to fraction form
319,867.94/479,276.76 = 109,391.06/x - Step 3: Cross multiply
319,867.94x = 479,276.76 × 109,391.06 - Step 4: Simplify right side
319,867.94x = 52,428,592,809.77 - Step 5: Solve for x
x = 52,428,592,809.77/319,867.94 - Step 6: Final answer
x = 163,906.99
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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.