Finding the Fourth Proportional to 478,465.56, 717,850.74 and 141,508.26
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Solution
The fourth proportional to 478,465.56, 717,850.74 and 141,508.26 is: 212,307.46
Step by Step Solution
- Step 1: Write the proportion equation
478,465.56 : 717,850.74 = 141,508.26 : x - Step 2: Convert to fraction form
478,465.56/717,850.74 = 141,508.26/x - Step 3: Cross multiply
478,465.56x = 717,850.74 × 141,508.26 - Step 4: Simplify right side
478,465.56x = 101,581,809,157.11 - Step 5: Solve for x
x = 101,581,809,157.11/478,465.56 - Step 6: Final answer
x = 212,307.46
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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.