Finding the Fourth Proportional to 236,865.67, 326,860.84 and 129,436.58
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Solution
The fourth proportional to 236,865.67, 326,860.84 and 129,436.58 is: 178,614.95
Step by Step Solution
- Step 1: Write the proportion equation
236,865.67 : 326,860.84 = 129,436.58 : x - Step 2: Convert to fraction form
236,865.67/326,860.84 = 129,436.58/x - Step 3: Cross multiply
236,865.67x = 326,860.84 × 129,436.58 - Step 4: Simplify right side
236,865.67x = 42,307,749,265.53 - Step 5: Solve for x
x = 42,307,749,265.53/236,865.67 - Step 6: Final answer
x = 178,614.95
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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.