Finding the Fourth Proportional to 229,203.44, 316,306.20 and 128,608.88
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Solution
The fourth proportional to 229,203.44, 316,306.20 and 128,608.88 is: 177,483.31
Step by Step Solution
- Step 1: Write the proportion equation
229,203.44 : 316,306.20 = 128,608.88 : x - Step 2: Convert to fraction form
229,203.44/316,306.20 = 128,608.88/x - Step 3: Cross multiply
229,203.44x = 316,306.20 × 128,608.88 - Step 4: Simplify right side
229,203.44x = 40,679,786,119.06 - Step 5: Solve for x
x = 40,679,786,119.06/229,203.44 - Step 6: Final answer
x = 177,483.31
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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.