Finding the Fourth Proportional to 282,993.08, 390,523.94 and 155,665.96
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Solution
The fourth proportional to 282,993.08, 390,523.94 and 155,665.96 is: 214,815.44
Step by Step Solution
- Step 1: Write the proportion equation
282,993.08 : 390,523.94 = 155,665.96 : x - Step 2: Convert to fraction form
282,993.08/390,523.94 = 155,665.96/x - Step 3: Cross multiply
282,993.08x = 390,523.94 × 155,665.96 - Step 4: Simplify right side
282,993.08x = 60,791,284,023.08 - Step 5: Solve for x
x = 60,791,284,023.08/282,993.08 - Step 6: Final answer
x = 214,815.44
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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.