Finding the Fourth Proportional to 230,815.18, 318,578.08 and 135,352.63
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Solution
The fourth proportional to 230,815.18, 318,578.08 and 135,352.63 is: 186,817.79
Step by Step Solution
- Step 1: Write the proportion equation
230,815.18 : 318,578.08 = 135,352.63 : x - Step 2: Convert to fraction form
230,815.18/318,578.08 = 135,352.63/x - Step 3: Cross multiply
230,815.18x = 318,578.08 × 135,352.63 - Step 4: Simplify right side
230,815.18x = 43,120,380,988.35 - Step 5: Solve for x
x = 43,120,380,988.35/230,815.18 - Step 6: Final answer
x = 186,817.79
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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.