Finding the Fourth Proportional to 253,746.32, 380,625.68 and 85,269.08
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Solution
The fourth proportional to 253,746.32, 380,625.68 and 85,269.08 is: 127,905.70
Step by Step Solution
- Step 1: Write the proportion equation
253,746.32 : 380,625.68 = 85,269.08 : x - Step 2: Convert to fraction form
253,746.32/380,625.68 = 85,269.08/x - Step 3: Cross multiply
253,746.32x = 380,625.68 × 85,269.08 - Step 4: Simplify right side
253,746.32x = 32,455,601,557.97 - Step 5: Solve for x
x = 32,455,601,557.97/253,746.32 - Step 6: Final answer
x = 127,905.70
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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.