Finding the Fourth Proportional to 478,536.90, 717,902.55 and 163,025.70
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Solution
The fourth proportional to 478,536.90, 717,902.55 and 163,025.70 is: 244,571.66
Step by Step Solution
- Step 1: Write the proportion equation
478,536.90 : 717,902.55 = 163,025.70 : x - Step 2: Convert to fraction form
478,536.90/717,902.55 = 163,025.70/x - Step 3: Cross multiply
478,536.90x = 717,902.55 × 163,025.70 - Step 4: Simplify right side
478,536.90x = 117,036,565,745.54 - Step 5: Solve for x
x = 117,036,565,745.54/478,536.90 - Step 6: Final answer
x = 244,571.66
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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.