Finding the Fourth Proportional to 478,211.70, 717,192.98 and 225,425.08
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Solution
The fourth proportional to 478,211.70, 717,192.98 and 225,425.08 is: 338,078.90
Step by Step Solution
- Step 1: Write the proportion equation
478,211.70 : 717,192.98 = 225,425.08 : x - Step 2: Convert to fraction form
478,211.70/717,192.98 = 225,425.08/x - Step 3: Cross multiply
478,211.70x = 717,192.98 × 225,425.08 - Step 4: Simplify right side
478,211.70x = 161,673,282,740.45 - Step 5: Solve for x
x = 161,673,282,740.45/478,211.70 - Step 6: Final answer
x = 338,078.90
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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.