Finding the Fourth Proportional to 351,986.21, 528,032.01 and 127,399.19
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Solution
The fourth proportional to 351,986.21, 528,032.01 and 127,399.19 is: 191,117.86
Step by Step Solution
- Step 1: Write the proportion equation
351,986.21 : 528,032.01 = 127,399.19 : x - Step 2: Convert to fraction form
351,986.21/528,032.01 = 127,399.19/x - Step 3: Cross multiply
351,986.21x = 528,032.01 × 127,399.19 - Step 4: Simplify right side
351,986.21x = 67,270,851,429.09 - Step 5: Solve for x
x = 67,270,851,429.09/351,986.21 - Step 6: Final answer
x = 191,117.86
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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.