Finding the Fourth Proportional to 257,207.29, 355,119.39 and 160,558.30
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Solution
The fourth proportional to 257,207.29, 355,119.39 and 160,558.30 is: 221,678.65
Step by Step Solution
- Step 1: Write the proportion equation
257,207.29 : 355,119.39 = 160,558.30 : x - Step 2: Convert to fraction form
257,207.29/355,119.39 = 160,558.30/x - Step 3: Cross multiply
257,207.29x = 355,119.39 × 160,558.30 - Step 4: Simplify right side
257,207.29x = 57,017,365,555.44 - Step 5: Solve for x
x = 57,017,365,555.44/257,207.29 - Step 6: Final answer
x = 221,678.65
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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.