Finding the Fourth Proportional to 285,416.30, 427,543.14 and 135,201.26
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Solution
The fourth proportional to 285,416.30, 427,543.14 and 135,201.26 is: 202,526.52
Step by Step Solution
- Step 1: Write the proportion equation
285,416.30 : 427,543.14 = 135,201.26 : x - Step 2: Convert to fraction form
285,416.30/427,543.14 = 135,201.26/x - Step 3: Cross multiply
285,416.30x = 427,543.14 × 135,201.26 - Step 4: Simplify right side
285,416.30x = 57,804,371,232.36 - Step 5: Solve for x
x = 57,804,371,232.36/285,416.30 - Step 6: Final answer
x = 202,526.52
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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.