Finding the Fourth Proportional to 208,996.64, 288,439.99 and 124,113.70
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Solution
The fourth proportional to 208,996.64, 288,439.99 and 124,113.70 is: 171,291.53
Step by Step Solution
- Step 1: Write the proportion equation
208,996.64 : 288,439.99 = 124,113.70 : x - Step 2: Convert to fraction form
208,996.64/288,439.99 = 124,113.70/x - Step 3: Cross multiply
208,996.64x = 288,439.99 × 124,113.70 - Step 4: Simplify right side
208,996.64x = 35,799,354,437.13 - Step 5: Solve for x
x = 35,799,354,437.13/208,996.64 - Step 6: Final answer
x = 171,291.53
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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.