Finding the Fourth Proportional to 226,215.74, 339,320.10 and 55,439.12
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Solution
The fourth proportional to 226,215.74, 339,320.10 and 55,439.12 is: 83,157.82
Step by Step Solution
- Step 1: Write the proportion equation
226,215.74 : 339,320.10 = 55,439.12 : x - Step 2: Convert to fraction form
226,215.74/339,320.10 = 55,439.12/x - Step 3: Cross multiply
226,215.74x = 339,320.10 × 55,439.12 - Step 4: Simplify right side
226,215.74x = 18,811,607,742.31 - Step 5: Solve for x
x = 18,811,607,742.31/226,215.74 - Step 6: Final answer
x = 83,157.82
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1.5x scale
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.