Finding the Fourth Proportional to 256,911.80, 385,367.70 and 194,703.80
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Solution
The fourth proportional to 256,911.80, 385,367.70 and 194,703.80 is: 292,055.70
Step by Step Solution
- Step 1: Write the proportion equation
256,911.80 : 385,367.70 = 194,703.80 : x - Step 2: Convert to fraction form
256,911.80/385,367.70 = 194,703.80/x - Step 3: Cross multiply
256,911.80x = 385,367.70 × 194,703.80 - Step 4: Simplify right side
256,911.80x = 75,032,555,587.26 - Step 5: Solve for x
x = 75,032,555,587.26/256,911.80 - Step 6: Final answer
x = 292,055.70
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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.