Finding the Fourth Proportional to 230,516.21, 318,104.01 and 133,721.99
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Solution
The fourth proportional to 230,516.21, 318,104.01 and 133,721.99 is: 184,531.49
Step by Step Solution
- Step 1: Write the proportion equation
230,516.21 : 318,104.01 = 133,721.99 : x - Step 2: Convert to fraction form
230,516.21/318,104.01 = 133,721.99/x - Step 3: Cross multiply
230,516.21x = 318,104.01 × 133,721.99 - Step 4: Simplify right side
230,516.21x = 42,537,500,846.55 - Step 5: Solve for x
x = 42,537,500,846.55/230,516.21 - Step 6: Final answer
x = 184,531.49
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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.