Finding the Fourth Proportional to 221,622.84, 331,595.82 and 135,927.72
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Solution
The fourth proportional to 221,622.84, 331,595.82 and 135,927.72 is: 203,377.34
Step by Step Solution
- Step 1: Write the proportion equation
221,622.84 : 331,595.82 = 135,927.72 : x - Step 2: Convert to fraction form
221,622.84/331,595.82 = 135,927.72/x - Step 3: Cross multiply
221,622.84x = 331,595.82 × 135,927.72 - Step 4: Simplify right side
221,622.84x = 45,073,063,774.13 - Step 5: Solve for x
x = 45,073,063,774.13/221,622.84 - Step 6: Final answer
x = 203,377.34
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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.