Finding the Fourth Proportional to 287,313.06, 430,969.58 and 135,474.79
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Solution
The fourth proportional to 287,313.06, 430,969.58 and 135,474.79 is: 203,212.18
Step by Step Solution
- Step 1: Write the proportion equation
287,313.06 : 430,969.58 = 135,474.79 : x - Step 2: Convert to fraction form
287,313.06/430,969.58 = 135,474.79/x - Step 3: Cross multiply
287,313.06x = 430,969.58 × 135,474.79 - Step 4: Simplify right side
287,313.06x = 58,385,512,669.51 - Step 5: Solve for x
x = 58,385,512,669.51/287,313.06 - Step 6: Final answer
x = 203,212.18
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1.5x scale
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.