Finding the Fourth Proportional to 478,108.44, 717,157.80 and 123,121.08
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Solution
The fourth proportional to 478,108.44, 717,157.80 and 123,121.08 is: 184,680.37
Step by Step Solution
- Step 1: Write the proportion equation
478,108.44 : 717,157.80 = 123,121.08 : x - Step 2: Convert to fraction form
478,108.44/717,157.80 = 123,121.08/x - Step 3: Cross multiply
478,108.44x = 717,157.80 × 123,121.08 - Step 4: Simplify right side
478,108.44x = 88,297,242,866.42 - Step 5: Solve for x
x = 88,297,242,866.42/478,108.44 - Step 6: Final answer
x = 184,680.37
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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.