Finding the Fourth Proportional to 430,958.70, 646,221.78 and 251,102.26
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Solution
The fourth proportional to 430,958.70, 646,221.78 and 251,102.26 is: 376,527.38
Step by Step Solution
- Step 1: Write the proportion equation
430,958.70 : 646,221.78 = 251,102.26 : x - Step 2: Convert to fraction form
430,958.70/646,221.78 = 251,102.26/x - Step 3: Cross multiply
430,958.70x = 646,221.78 × 251,102.26 - Step 4: Simplify right side
430,958.70x = 162,267,749,419.22 - Step 5: Solve for x
x = 162,267,749,419.22/430,958.70 - Step 6: Final answer
x = 376,527.38
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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.