Finding the Fourth Proportional to 282,753.26, 390,199.92 and 155,429.63
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Solution
The fourth proportional to 282,753.26, 390,199.92 and 155,429.63 is: 214,493.12
Step by Step Solution
- Step 1: Write the proportion equation
282,753.26 : 390,199.92 = 155,429.63 : x - Step 2: Convert to fraction form
282,753.26/390,199.92 = 155,429.63/x - Step 3: Cross multiply
282,753.26x = 390,199.92 × 155,429.63 - Step 4: Simplify right side
282,753.26x = 60,648,629,191.63 - Step 5: Solve for x
x = 60,648,629,191.63/282,753.26 - Step 6: Final answer
x = 214,493.12
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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.