Finding the Fourth Proportional to 188,897.55, 260,708.57 and 112,419.99
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Solution
The fourth proportional to 188,897.55, 260,708.57 and 112,419.99 is: 155,157.41
Step by Step Solution
- Step 1: Write the proportion equation
188,897.55 : 260,708.57 = 112,419.99 : x - Step 2: Convert to fraction form
188,897.55/260,708.57 = 112,419.99/x - Step 3: Cross multiply
188,897.55x = 260,708.57 × 112,419.99 - Step 4: Simplify right side
188,897.55x = 29,308,854,270.21 - Step 5: Solve for x
x = 29,308,854,270.21/188,897.55 - Step 6: Final answer
x = 155,157.41
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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.