Finding the Fourth Proportional to 208,637.28, 312,877.35 and 75,484.62
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Solution
The fourth proportional to 208,637.28, 312,877.35 and 75,484.62 is: 113,198.50
Step by Step Solution
- Step 1: Write the proportion equation
208,637.28 : 312,877.35 = 75,484.62 : x - Step 2: Convert to fraction form
208,637.28/312,877.35 = 75,484.62/x - Step 3: Cross multiply
208,637.28x = 312,877.35 × 75,484.62 - Step 4: Simplify right side
208,637.28x = 23,617,427,871.36 - Step 5: Solve for x
x = 23,617,427,871.36/208,637.28 - Step 6: Final answer
x = 113,198.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.