Finding the Fourth Proportional to 230,900.55, 318,715.34 and 135,445.83
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Solution
The fourth proportional to 230,900.55, 318,715.34 and 135,445.83 is: 186,957.82
Step by Step Solution
- Step 1: Write the proportion equation
230,900.55 : 318,715.34 = 135,445.83 : x - Step 2: Convert to fraction form
230,900.55/318,715.34 = 135,445.83/x - Step 3: Cross multiply
230,900.55x = 318,715.34 × 135,445.83 - Step 4: Simplify right side
230,900.55x = 43,168,663,082.80 - Step 5: Solve for x
x = 43,168,663,082.80/230,900.55 - Step 6: Final answer
x = 186,957.82
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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.