Finding the Fourth Proportional to 398,466.43, 549,883.87 and 226,384.69
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Solution
The fourth proportional to 398,466.43, 549,883.87 and 226,384.69 is: 312,410.99
Step by Step Solution
- Step 1: Write the proportion equation
398,466.43 : 549,883.87 = 226,384.69 : x - Step 2: Convert to fraction form
398,466.43/549,883.87 = 226,384.69/x - Step 3: Cross multiply
398,466.43x = 549,883.87 × 226,384.69 - Step 4: Simplify right side
398,466.43x = 124,485,289,809.73 - Step 5: Solve for x
x = 124,485,289,809.73/398,466.43 - Step 6: Final answer
x = 312,410.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.