Finding the Fourth Proportional to 319,323.76, 440,668.48 and 176,081.20
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Solution
The fourth proportional to 319,323.76, 440,668.48 and 176,081.20 is: 242,992.99
Step by Step Solution
- Step 1: Write the proportion equation
319,323.76 : 440,668.48 = 176,081.20 : x - Step 2: Convert to fraction form
319,323.76/440,668.48 = 176,081.20/x - Step 3: Cross multiply
319,323.76x = 440,668.48 × 176,081.20 - Step 4: Simplify right side
319,323.76x = 77,593,434,760.58 - Step 5: Solve for x
x = 77,593,434,760.58/319,323.76 - Step 6: Final answer
x = 242,992.99
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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.