Finding the Fourth Proportional to 157,442.28, 217,269.18 and 85,822.08
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Solution
The fourth proportional to 157,442.28, 217,269.18 and 85,822.08 is: 118,433.83
Step by Step Solution
- Step 1: Write the proportion equation
157,442.28 : 217,269.18 = 85,822.08 : x - Step 2: Convert to fraction form
157,442.28/217,269.18 = 85,822.08/x - Step 3: Cross multiply
157,442.28x = 217,269.18 × 85,822.08 - Step 4: Simplify right side
157,442.28x = 18,646,492,947.49 - Step 5: Solve for x
x = 18,646,492,947.49/157,442.28 - Step 6: Final answer
x = 118,433.83
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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.