Finding the Fourth Proportional to 229,260.75, 316,409.00 and 128,658.75
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Solution
The fourth proportional to 229,260.75, 316,409.00 and 128,658.75 is: 177,565.44
Step by Step Solution
- Step 1: Write the proportion equation
229,260.75 : 316,409.00 = 128,658.75 : x - Step 2: Convert to fraction form
229,260.75/316,409.00 = 128,658.75/x - Step 3: Cross multiply
229,260.75x = 316,409.00 × 128,658.75 - Step 4: Simplify right side
229,260.75x = 40,708,785,785.46 - Step 5: Solve for x
x = 40,708,785,785.46/229,260.75 - Step 6: Final answer
x = 177,565.44
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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.