Finding the Fourth Proportional to 254,909.70, 382,364.55 and 136,811.70
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Solution
The fourth proportional to 254,909.70, 382,364.55 and 136,811.70 is: 205,217.55
Step by Step Solution
- Step 1: Write the proportion equation
254,909.70 : 382,364.55 = 136,811.70 : x - Step 2: Convert to fraction form
254,909.70/382,364.55 = 136,811.70/x - Step 3: Cross multiply
254,909.70x = 382,364.55 × 136,811.70 - Step 4: Simplify right side
254,909.70x = 52,311,944,105.24 - Step 5: Solve for x
x = 52,311,944,105.24/254,909.70 - Step 6: Final answer
x = 205,217.55
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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.