Finding the Fourth Proportional to 643,926.54, 965,671.11 and 223,104.18
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Solution
The fourth proportional to 643,926.54, 965,671.11 and 223,104.18 is: 334,580.50
Step by Step Solution
- Step 1: Write the proportion equation
643,926.54 : 965,671.11 = 223,104.18 : x - Step 2: Convert to fraction form
643,926.54/965,671.11 = 223,104.18/x - Step 3: Cross multiply
643,926.54x = 965,671.11 × 223,104.18 - Step 4: Simplify right side
643,926.54x = 215,445,261,146.24 - Step 5: Solve for x
x = 215,445,261,146.24/643,926.54 - Step 6: Final answer
x = 334,580.50
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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.