Finding the Fourth Proportional to 226,278.12, 312,193.50 and 130,749.96
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Solution
The fourth proportional to 226,278.12, 312,193.50 and 130,749.96 is: 180,394.32
Step by Step Solution
- Step 1: Write the proportion equation
226,278.12 : 312,193.50 = 130,749.96 : x - Step 2: Convert to fraction form
226,278.12/312,193.50 = 130,749.96/x - Step 3: Cross multiply
226,278.12x = 312,193.50 × 130,749.96 - Step 4: Simplify right side
226,278.12x = 40,819,287,637.26 - Step 5: Solve for x
x = 40,819,287,637.26/226,278.12 - Step 6: Final answer
x = 180,394.32
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1.5x scale
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.