Finding the Fourth Proportional to 429,905.18, 644,872.11 and 193,248.56
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Solution
The fourth proportional to 429,905.18, 644,872.11 and 193,248.56 is: 289,879.28
Step by Step Solution
- Step 1: Write the proportion equation
429,905.18 : 644,872.11 = 193,248.56 : x - Step 2: Convert to fraction form
429,905.18/644,872.11 = 193,248.56/x - Step 3: Cross multiply
429,905.18x = 644,872.11 × 193,248.56 - Step 4: Simplify right side
429,905.18x = 124,620,602,451.06 - Step 5: Solve for x
x = 124,620,602,451.06/429,905.18 - Step 6: Final answer
x = 289,879.28
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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.