Finding the Fourth Proportional to 421,572.72, 581,766.12 and 230,589.84
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Solution
The fourth proportional to 421,572.72, 581,766.12 and 230,589.84 is: 318,211.66
Step by Step Solution
- Step 1: Write the proportion equation
421,572.72 : 581,766.12 = 230,589.84 : x - Step 2: Convert to fraction form
421,572.72/581,766.12 = 230,589.84/x - Step 3: Cross multiply
421,572.72x = 581,766.12 × 230,589.84 - Step 4: Simplify right side
421,572.72x = 134,149,356,528.22 - Step 5: Solve for x
x = 134,149,356,528.22/421,572.72 - Step 6: Final answer
x = 318,211.66
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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.