Finding the Fourth Proportional to 286,958.70, 430,438.05 and 236,220.30
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Solution
The fourth proportional to 286,958.70, 430,438.05 and 236,220.30 is: 354,330.45
Step by Step Solution
- Step 1: Write the proportion equation
286,958.70 : 430,438.05 = 236,220.30 : x - Step 2: Convert to fraction form
286,958.70/430,438.05 = 236,220.30/x - Step 3: Cross multiply
286,958.70x = 430,438.05 × 236,220.30 - Step 4: Simplify right side
286,958.70x = 101,678,205,302.42 - Step 5: Solve for x
x = 101,678,205,302.42/286,958.70 - Step 6: Final answer
x = 354,330.45
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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.