Finding the Fourth Proportional to 229,566.96, 316,800.72 and 128,964.96
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Solution
The fourth proportional to 229,566.96, 316,800.72 and 128,964.96 is: 177,970.70
Step by Step Solution
- Step 1: Write the proportion equation
229,566.96 : 316,800.72 = 128,964.96 : x - Step 2: Convert to fraction form
229,566.96/316,800.72 = 128,964.96/x - Step 3: Cross multiply
229,566.96x = 316,800.72 × 128,964.96 - Step 4: Simplify right side
229,566.96x = 40,856,192,182.77 - Step 5: Solve for x
x = 40,856,192,182.77/229,566.96 - Step 6: Final answer
x = 177,970.70
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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.