Finding the Fourth Proportional to 286,887.70, 430,331.55 and 236,149.30
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Solution
The fourth proportional to 286,887.70, 430,331.55 and 236,149.30 is: 354,223.95
Step by Step Solution
- Step 1: Write the proportion equation
286,887.70 : 430,331.55 = 236,149.30 : x - Step 2: Convert to fraction form
286,887.70/430,331.55 = 236,149.30/x - Step 3: Cross multiply
286,887.70x = 430,331.55 × 236,149.30 - Step 4: Simplify right side
286,887.70x = 101,622,494,300.42 - Step 5: Solve for x
x = 101,622,494,300.42/286,887.70 - Step 6: Final answer
x = 354,223.95
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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.