Finding the Fourth Proportional to 355,953.20, 491,215.62 and 194,808.17
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Solution
The fourth proportional to 355,953.20, 491,215.62 and 194,808.17 is: 268,835.39
Step by Step Solution
- Step 1: Write the proportion equation
355,953.20 : 491,215.62 = 194,808.17 : x - Step 2: Convert to fraction form
355,953.20/491,215.62 = 194,808.17/x - Step 3: Cross multiply
355,953.20x = 491,215.62 × 194,808.17 - Step 4: Simplify right side
355,953.20x = 95,692,816,007.62 - Step 5: Solve for x
x = 95,692,816,007.62/355,953.20 - Step 6: Final answer
x = 268,835.39
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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.