Finding the Fourth Proportional to 282,656.99, 389,676.93 and 225,490.33
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Solution
The fourth proportional to 282,656.99, 389,676.93 and 225,490.33 is: 310,865.75
Step by Step Solution
- Step 1: Write the proportion equation
282,656.99 : 389,676.93 = 225,490.33 : x - Step 2: Convert to fraction form
282,656.99/389,676.93 = 225,490.33/x - Step 3: Cross multiply
282,656.99x = 389,676.93 × 225,490.33 - Step 4: Simplify right side
282,656.99x = 87,868,379,180.59 - Step 5: Solve for x
x = 87,868,379,180.59/282,656.99 - Step 6: Final answer
x = 310,865.75
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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.