Finding the Fourth Proportional to 421,580.24, 581,768.64 and 230,589.44
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Solution
The fourth proportional to 421,580.24, 581,768.64 and 230,589.44 is: 318,206.81
Step by Step Solution
- Step 1: Write the proportion equation
421,580.24 : 581,768.64 = 230,589.44 : x - Step 2: Convert to fraction form
421,580.24/581,768.64 = 230,589.44/x - Step 3: Cross multiply
421,580.24x = 581,768.64 × 230,589.44 - Step 4: Simplify right side
421,580.24x = 134,149,704,907.16 - Step 5: Solve for x
x = 134,149,704,907.16/421,580.24 - Step 6: Final answer
x = 318,206.81
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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.