Finding the Fourth Proportional to 229,193.44, 316,292.40 and 128,598.88
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Solution
The fourth proportional to 229,193.44, 316,292.40 and 128,598.88 is: 177,469.51
Step by Step Solution
- Step 1: Write the proportion equation
229,193.44 : 316,292.40 = 128,598.88 : x - Step 2: Convert to fraction form
229,193.44/316,292.40 = 128,598.88/x - Step 3: Cross multiply
229,193.44x = 316,292.40 × 128,598.88 - Step 4: Simplify right side
229,193.44x = 40,674,848,392.51 - Step 5: Solve for x
x = 40,674,848,392.51/229,193.44 - Step 6: Final answer
x = 177,469.51
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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.