Finding the Fourth Proportional to 257,800.24, 386,718.86 and 107,889.63
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Solution
The fourth proportional to 257,800.24, 386,718.86 and 107,889.63 is: 161,842.19
Step by Step Solution
- Step 1: Write the proportion equation
257,800.24 : 386,718.86 = 107,889.63 : x - Step 2: Convert to fraction form
257,800.24/386,718.86 = 107,889.63/x - Step 3: Cross multiply
257,800.24x = 386,718.86 × 107,889.63 - Step 4: Simplify right side
257,800.24x = 41,722,954,719.42 - Step 5: Solve for x
x = 41,722,954,719.42/257,800.24 - Step 6: Final answer
x = 161,842.19
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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.