Finding the Fourth Proportional to 312,025.23, 430,593.98 and 168,787.26
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Solution
The fourth proportional to 312,025.23, 430,593.98 and 168,787.26 is: 232,925.96
Step by Step Solution
- Step 1: Write the proportion equation
312,025.23 : 430,593.98 = 168,787.26 : x - Step 2: Convert to fraction form
312,025.23/430,593.98 = 168,787.26/x - Step 3: Cross multiply
312,025.23x = 430,593.98 × 168,787.26 - Step 4: Simplify right side
312,025.23x = 72,678,777,212.76 - Step 5: Solve for x
x = 72,678,777,212.76/312,025.23 - Step 6: Final answer
x = 232,925.96
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1.5x scale
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.