Finding the Fourth Proportional to 229,730.18, 344,370.28 and 128,577.62
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Solution
The fourth proportional to 229,730.18, 344,370.28 and 128,577.62 is: 192,740.51
Step by Step Solution
- Step 1: Write the proportion equation
229,730.18 : 344,370.28 = 128,577.62 : x - Step 2: Convert to fraction form
229,730.18/344,370.28 = 128,577.62/x - Step 3: Cross multiply
229,730.18x = 344,370.28 × 128,577.62 - Step 4: Simplify right side
229,730.18x = 44,278,311,001.13 - Step 5: Solve for x
x = 44,278,311,001.13/229,730.18 - Step 6: Final answer
x = 192,740.51
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.