Finding the Fourth Proportional to 238,860.18, 329,640.99 and 136,917.23
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Solution
The fourth proportional to 238,860.18, 329,640.99 and 136,917.23 is: 188,953.76
Step by Step Solution
- Step 1: Write the proportion equation
238,860.18 : 329,640.99 = 136,917.23 : x - Step 2: Convert to fraction form
238,860.18/329,640.99 = 136,917.23/x - Step 3: Cross multiply
238,860.18x = 329,640.99 × 136,917.23 - Step 4: Simplify right side
238,860.18x = 45,133,529,597.05 - Step 5: Solve for x
x = 45,133,529,597.05/238,860.18 - Step 6: Final answer
x = 188,953.76
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1.5x scale
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.