Finding the Fourth Proportional to 319,131.69, 440,404.79 and 175,897.23
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Solution
The fourth proportional to 319,131.69, 440,404.79 and 175,897.23 is: 242,739.86
Step by Step Solution
- Step 1: Write the proportion equation
319,131.69 : 440,404.79 = 175,897.23 : x - Step 2: Convert to fraction form
319,131.69/440,404.79 = 175,897.23/x - Step 3: Cross multiply
319,131.69x = 440,404.79 × 175,897.23 - Step 4: Simplify right side
319,131.69x = 77,465,982,639.73 - Step 5: Solve for x
x = 77,465,982,639.73/319,131.69 - Step 6: Final answer
x = 242,739.86
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1.5x scale
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.