Finding the Fourth Proportional to 396,120.95, 546,716.79 and 235,064.80
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Solution
The fourth proportional to 396,120.95, 546,716.79 and 235,064.80 is: 324,430.89
Step by Step Solution
- Step 1: Write the proportion equation
396,120.95 : 546,716.79 = 235,064.80 : x - Step 2: Convert to fraction form
396,120.95/546,716.79 = 235,064.80/x - Step 3: Cross multiply
396,120.95x = 546,716.79 × 235,064.80 - Step 4: Simplify right side
396,120.95x = 128,513,871,531.20 - Step 5: Solve for x
x = 128,513,871,531.20/396,120.95 - Step 6: Final answer
x = 324,430.89
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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.