Finding the Fourth Proportional to 318,836.10, 439,990.70 and 175,593.26
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Solution
The fourth proportional to 318,836.10, 439,990.70 and 175,593.26 is: 242,316.98
Step by Step Solution
- Step 1: Write the proportion equation
318,836.10 : 439,990.70 = 175,593.26 : x - Step 2: Convert to fraction form
318,836.10/439,990.70 = 175,593.26/x - Step 3: Cross multiply
318,836.10x = 439,990.70 × 175,593.26 - Step 4: Simplify right side
318,836.10x = 77,259,401,382.68 - Step 5: Solve for x
x = 77,259,401,382.68/318,836.10 - Step 6: Final answer
x = 242,316.98
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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.