Finding the Fourth Proportional to 239,903.08, 331,076.10 and 149,312.68
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Solution
The fourth proportional to 239,903.08, 331,076.10 and 149,312.68 is: 206,057.63
Step by Step Solution
- Step 1: Write the proportion equation
239,903.08 : 331,076.10 = 149,312.68 : x - Step 2: Convert to fraction form
239,903.08/331,076.10 = 149,312.68/x - Step 3: Cross multiply
239,903.08x = 331,076.10 × 149,312.68 - Step 4: Simplify right side
239,903.08x = 49,433,859,774.95 - Step 5: Solve for x
x = 49,433,859,774.95/239,903.08 - Step 6: Final answer
x = 206,057.63
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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.