Finding the Fourth Proportional to 385,781.80, 532,366.84 and 213,692.88
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Solution
The fourth proportional to 385,781.80, 532,366.84 and 213,692.88 is: 294,889.50
Step by Step Solution
- Step 1: Write the proportion equation
385,781.80 : 532,366.84 = 213,692.88 : x - Step 2: Convert to fraction form
385,781.80/532,366.84 = 213,692.88/x - Step 3: Cross multiply
385,781.80x = 532,366.84 × 213,692.88 - Step 4: Simplify right side
385,781.80x = 113,763,003,256.10 - Step 5: Solve for x
x = 113,763,003,256.10/385,781.80 - Step 6: Final answer
x = 294,889.50
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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.