Finding the Fourth Proportional to 319,299.94, 440,636.97 and 176,065.12
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Solution
The fourth proportional to 319,299.94, 440,636.97 and 176,065.12 is: 242,971.55
Step by Step Solution
- Step 1: Write the proportion equation
319,299.94 : 440,636.97 = 176,065.12 : x - Step 2: Convert to fraction form
319,299.94/440,636.97 = 176,065.12/x - Step 3: Cross multiply
319,299.94x = 440,636.97 × 176,065.12 - Step 4: Simplify right side
319,299.94x = 77,580,800,999.49 - Step 5: Solve for x
x = 77,580,800,999.49/319,299.94 - Step 6: Final answer
x = 242,971.55
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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.