Finding the Fourth Proportional to 257,624.96, 386,104.79 and 115,366.28
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Solution
The fourth proportional to 257,624.96, 386,104.79 and 115,366.28 is: 172,900.45
Step by Step Solution
- Step 1: Write the proportion equation
257,624.96 : 386,104.79 = 115,366.28 : x - Step 2: Convert to fraction form
257,624.96/386,104.79 = 115,366.28/x - Step 3: Cross multiply
257,624.96x = 386,104.79 × 115,366.28 - Step 4: Simplify right side
257,624.96x = 44,543,471,670.37 - Step 5: Solve for x
x = 44,543,471,670.37/257,624.96 - Step 6: Final answer
x = 172,900.45
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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.