Finding the Fourth Proportional to 257,853.68, 355,853.76 and 171,663.92
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Solution
The fourth proportional to 257,853.68, 355,853.76 and 171,663.92 is: 236,906.65
Step by Step Solution
- Step 1: Write the proportion equation
257,853.68 : 355,853.76 = 171,663.92 : x - Step 2: Convert to fraction form
257,853.68/355,853.76 = 171,663.92/x - Step 3: Cross multiply
257,853.68x = 355,853.76 × 171,663.92 - Step 4: Simplify right side
257,853.68x = 61,087,251,388.34 - Step 5: Solve for x
x = 61,087,251,388.34/257,853.68 - Step 6: Final answer
x = 236,906.65
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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.