Finding the Fourth Proportional to 243,211.98, 335,618.43 and 135,788.76
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Solution
The fourth proportional to 243,211.98, 335,618.43 and 135,788.76 is: 187,380.62
Step by Step Solution
- Step 1: Write the proportion equation
243,211.98 : 335,618.43 = 135,788.76 : x - Step 2: Convert to fraction form
243,211.98/335,618.43 = 135,788.76/x - Step 3: Cross multiply
243,211.98x = 335,618.43 × 135,788.76 - Step 4: Simplify right side
243,211.98x = 45,573,210,442.85 - Step 5: Solve for x
x = 45,573,210,442.85/243,211.98 - Step 6: Final answer
x = 187,380.62
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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.