Finding the Fourth Proportional to 285,340.05, 427,428.77 and 135,124.88
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Solution
The fourth proportional to 285,340.05, 427,428.77 and 135,124.88 is: 202,412.03
Step by Step Solution
- Step 1: Write the proportion equation
285,340.05 : 427,428.77 = 135,124.88 : x - Step 2: Convert to fraction form
285,340.05/427,428.77 = 135,124.88/x - Step 3: Cross multiply
285,340.05x = 427,428.77 × 135,124.88 - Step 4: Simplify right side
285,340.05x = 57,756,258,442.03 - Step 5: Solve for x
x = 57,756,258,442.03/285,340.05 - Step 6: Final answer
x = 202,412.03
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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.