Finding the Fourth Proportional to 310,912.83, 466,317.08 and 86,296.09
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Solution
The fourth proportional to 310,912.83, 466,317.08 and 86,296.09 is: 129,429.66
Step by Step Solution
- Step 1: Write the proportion equation
310,912.83 : 466,317.08 = 86,296.09 : x - Step 2: Convert to fraction form
310,912.83/466,317.08 = 86,296.09/x - Step 3: Cross multiply
310,912.83x = 466,317.08 × 86,296.09 - Step 4: Simplify right side
310,912.83x = 40,241,340,704.22 - Step 5: Solve for x
x = 40,241,340,704.22/310,912.83 - Step 6: Final answer
x = 129,429.66
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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.