Finding the Fourth Proportional to 438,190.75, 604,703.24 and 236,986.75
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Solution
The fourth proportional to 438,190.75, 604,703.24 and 236,986.75 is: 327,041.72
Step by Step Solution
- Step 1: Write the proportion equation
438,190.75 : 604,703.24 = 236,986.75 : x - Step 2: Convert to fraction form
438,190.75/604,703.24 = 236,986.75/x - Step 3: Cross multiply
438,190.75x = 604,703.24 × 236,986.75 - Step 4: Simplify right side
438,190.75x = 143,306,655,562.07 - Step 5: Solve for x
x = 143,306,655,562.07/438,190.75 - Step 6: Final answer
x = 327,041.72
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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.