Finding the Fourth Proportional to 257,274.08, 385,948.47 and 79,795.38
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Solution
The fourth proportional to 257,274.08, 385,948.47 and 79,795.38 is: 119,704.66
Step by Step Solution
- Step 1: Write the proportion equation
257,274.08 : 385,948.47 = 79,795.38 : x - Step 2: Convert to fraction form
257,274.08/385,948.47 = 79,795.38/x - Step 3: Cross multiply
257,274.08x = 385,948.47 × 79,795.38 - Step 4: Simplify right side
257,274.08x = 30,796,904,824.07 - Step 5: Solve for x
x = 30,796,904,824.07/257,274.08 - Step 6: Final answer
x = 119,704.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.