Finding the Fourth Proportional to 312,181.14, 430,809.93 and 168,941.19
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Solution
The fourth proportional to 312,181.14, 430,809.93 and 168,941.19 is: 233,138.82
Step by Step Solution
- Step 1: Write the proportion equation
312,181.14 : 430,809.93 = 168,941.19 : x - Step 2: Convert to fraction form
312,181.14/430,809.93 = 168,941.19/x - Step 3: Cross multiply
312,181.14x = 430,809.93 × 168,941.19 - Step 4: Simplify right side
312,181.14x = 72,781,542,238.02 - Step 5: Solve for x
x = 72,781,542,238.02/312,181.14 - Step 6: Final answer
x = 233,138.82
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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.