Finding the Fourth Proportional to 257,718.36, 386,484.84 and 89,192.94
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Solution
The fourth proportional to 257,718.36, 386,484.84 and 89,192.94 is: 133,757.33
Step by Step Solution
- Step 1: Write the proportion equation
257,718.36 : 386,484.84 = 89,192.94 : x - Step 2: Convert to fraction form
257,718.36/386,484.84 = 89,192.94/x - Step 3: Cross multiply
257,718.36x = 386,484.84 × 89,192.94 - Step 4: Simplify right side
257,718.36x = 34,471,719,145.03 - Step 5: Solve for x
x = 34,471,719,145.03/257,718.36 - Step 6: Final answer
x = 133,757.33
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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.