Finding the Fourth Proportional to 228,629.99, 315,506.07 and 126,655.28
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Solution
The fourth proportional to 228,629.99, 315,506.07 and 126,655.28 is: 174,782.45
Step by Step Solution
- Step 1: Write the proportion equation
228,629.99 : 315,506.07 = 126,655.28 : x - Step 2: Convert to fraction form
228,629.99/315,506.07 = 126,655.28/x - Step 3: Cross multiply
228,629.99x = 315,506.07 × 126,655.28 - Step 4: Simplify right side
228,629.99x = 39,960,509,637.55 - Step 5: Solve for x
x = 39,960,509,637.55/228,629.99 - Step 6: Final answer
x = 174,782.45
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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.