Finding the Fourth Proportional to 230,909.46, 318,708.18 and 135,446.91
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Solution
The fourth proportional to 230,909.46, 318,708.18 and 135,446.91 is: 186,947.90
Step by Step Solution
- Step 1: Write the proportion equation
230,909.46 : 318,708.18 = 135,446.91 : x - Step 2: Convert to fraction form
230,909.46/318,708.18 = 135,446.91/x - Step 3: Cross multiply
230,909.46x = 318,708.18 × 135,446.91 - Step 4: Simplify right side
230,909.46x = 43,168,038,172.72 - Step 5: Solve for x
x = 43,168,038,172.72/230,909.46 - Step 6: Final answer
x = 186,947.90
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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.