Finding the Fourth Proportional to 319,475.70, 479,213.55 and 97,859.70
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Solution
The fourth proportional to 319,475.70, 479,213.55 and 97,859.70 is: 146,789.55
Step by Step Solution
- Step 1: Write the proportion equation
319,475.70 : 479,213.55 = 97,859.70 : x - Step 2: Convert to fraction form
319,475.70/479,213.55 = 97,859.70/x - Step 3: Cross multiply
319,475.70x = 479,213.55 × 97,859.70 - Step 4: Simplify right side
319,475.70x = 46,895,694,238.94 - Step 5: Solve for x
x = 46,895,694,238.94/319,475.70 - Step 6: Final answer
x = 146,789.55
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1.5x scale
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.