Finding the Fourth Proportional to 478,239.90, 717,192.21 and 141,190.62
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Solution
The fourth proportional to 478,239.90, 717,192.21 and 141,190.62 is: 211,736.44
Step by Step Solution
- Step 1: Write the proportion equation
478,239.90 : 717,192.21 = 141,190.62 : x - Step 2: Convert to fraction form
478,239.90/717,192.21 = 141,190.62/x - Step 3: Cross multiply
478,239.90x = 717,192.21 × 141,190.62 - Step 4: Simplify right side
478,239.90x = 101,260,812,789.07 - Step 5: Solve for x
x = 101,260,812,789.07/478,239.90 - Step 6: Final answer
x = 211,736.44
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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.