Finding the Fourth Proportional to 640,129.92, 960,195.20 and 166,814.08
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Solution
The fourth proportional to 640,129.92, 960,195.20 and 166,814.08 is: 250,221.20
Step by Step Solution
- Step 1: Write the proportion equation
640,129.92 : 960,195.20 = 166,814.08 : x - Step 2: Convert to fraction form
640,129.92/960,195.20 = 166,814.08/x - Step 3: Cross multiply
640,129.92x = 960,195.20 × 166,814.08 - Step 4: Simplify right side
640,129.92x = 160,174,078,908.42 - Step 5: Solve for x
x = 160,174,078,908.42/640,129.92 - Step 6: Final answer
x = 250,221.20
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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.