Finding the Fourth Proportional to 153,397.80, 229,790.16 and 121,861.26
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Solution
The fourth proportional to 153,397.80, 229,790.16 and 121,861.26 is: 182,548.37
Step by Step Solution
- Step 1: Write the proportion equation
153,397.80 : 229,790.16 = 121,861.26 : x - Step 2: Convert to fraction form
153,397.80/229,790.16 = 121,861.26/x - Step 3: Cross multiply
153,397.80x = 229,790.16 × 121,861.26 - Step 4: Simplify right side
153,397.80x = 28,002,518,433.20 - Step 5: Solve for x
x = 28,002,518,433.20/153,397.80 - Step 6: Final answer
x = 182,548.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.