Finding the Fourth Proportional to 236,890.68, 326,895.36 and 129,461.64
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Solution
The fourth proportional to 236,890.68, 326,895.36 and 129,461.64 is: 178,649.53
Step by Step Solution
- Step 1: Write the proportion equation
236,890.68 : 326,895.36 = 129,461.64 : x - Step 2: Convert to fraction form
236,890.68/326,895.36 = 129,461.64/x - Step 3: Cross multiply
236,890.68x = 326,895.36 × 129,461.64 - Step 4: Simplify right side
236,890.68x = 42,320,409,413.99 - Step 5: Solve for x
x = 42,320,409,413.99/236,890.68 - Step 6: Final answer
x = 178,649.53
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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.