Finding the Fourth Proportional to 478,473.21, 717,850.17 and 141,522.75
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Solution
The fourth proportional to 478,473.21, 717,850.17 and 141,522.75 is: 212,325.64
Step by Step Solution
- Step 1: Write the proportion equation
478,473.21 : 717,850.17 = 141,522.75 : x - Step 2: Convert to fraction form
478,473.21/717,850.17 = 141,522.75/x - Step 3: Cross multiply
478,473.21x = 717,850.17 × 141,522.75 - Step 4: Simplify right side
478,473.21x = 101,592,130,146.37 - Step 5: Solve for x
x = 101,592,130,146.37/478,473.21 - Step 6: Final answer
x = 212,325.64
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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.