Finding the Fourth Proportional to 257,198.36, 385,656.59 and 79,656.08
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Solution
The fourth proportional to 257,198.36, 385,656.59 and 79,656.08 is: 119,440.46
Step by Step Solution
- Step 1: Write the proportion equation
257,198.36 : 385,656.59 = 79,656.08 : x - Step 2: Convert to fraction form
257,198.36/385,656.59 = 79,656.08/x - Step 3: Cross multiply
257,198.36x = 385,656.59 × 79,656.08 - Step 4: Simplify right side
257,198.36x = 30,719,890,456.42 - Step 5: Solve for x
x = 30,719,890,456.42/257,198.36 - Step 6: Final answer
x = 119,440.46
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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.