Finding the Fourth Proportional to 319,320.64, 440,653.80 and 176,078.08
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Solution
The fourth proportional to 319,320.64, 440,653.80 and 176,078.08 is: 242,982.96
Step by Step Solution
- Step 1: Write the proportion equation
319,320.64 : 440,653.80 = 176,078.08 : x - Step 2: Convert to fraction form
319,320.64/440,653.80 = 176,078.08/x - Step 3: Cross multiply
319,320.64x = 440,653.80 × 176,078.08 - Step 4: Simplify right side
319,320.64x = 77,589,475,048.70 - Step 5: Solve for x
x = 77,589,475,048.70/319,320.64 - Step 6: Final answer
x = 242,982.96
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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.