Finding the Fourth Proportional to 319,211.99, 440,513.88 and 175,968.89
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Solution
The fourth proportional to 319,211.99, 440,513.88 and 175,968.89 is: 242,837.80
Step by Step Solution
- Step 1: Write the proportion equation
319,211.99 : 440,513.88 = 175,968.89 : x - Step 2: Convert to fraction form
319,211.99/440,513.88 = 175,968.89/x - Step 3: Cross multiply
319,211.99x = 440,513.88 × 175,968.89 - Step 4: Simplify right side
319,211.99x = 77,516,738,493.19 - Step 5: Solve for x
x = 77,516,738,493.19/319,211.99 - Step 6: Final answer
x = 242,837.80
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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.