Finding the Fourth Proportional to 316,768.15, 475,157.09 and 106,407.91
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Solution
The fourth proportional to 316,768.15, 475,157.09 and 106,407.91 is: 159,613.50
Step by Step Solution
- Step 1: Write the proportion equation
316,768.15 : 475,157.09 = 106,407.91 : x - Step 2: Convert to fraction form
316,768.15/475,157.09 = 106,407.91/x - Step 3: Cross multiply
316,768.15x = 475,157.09 × 106,407.91 - Step 4: Simplify right side
316,768.15x = 50,560,472,336.54 - Step 5: Solve for x
x = 50,560,472,336.54/316,768.15 - Step 6: Final answer
x = 159,613.50
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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.