Finding the Fourth Proportional to 319,445.80, 479,168.70 and 97,829.80
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Solution
The fourth proportional to 319,445.80, 479,168.70 and 97,829.80 is: 146,744.70
Step by Step Solution
- Step 1: Write the proportion equation
319,445.80 : 479,168.70 = 97,829.80 : x - Step 2: Convert to fraction form
319,445.80/479,168.70 = 97,829.80/x - Step 3: Cross multiply
319,445.80x = 479,168.70 × 97,829.80 - Step 4: Simplify right side
319,445.80x = 46,876,978,087.26 - Step 5: Solve for x
x = 46,876,978,087.26/319,445.80 - Step 6: Final answer
x = 146,744.70
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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.