Finding the Fourth Proportional to 253,925.19, 380,140.11 and 187,660.71
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Solution
The fourth proportional to 253,925.19, 380,140.11 and 187,660.71 is: 280,938.50
Step by Step Solution
- Step 1: Write the proportion equation
253,925.19 : 380,140.11 = 187,660.71 : x - Step 2: Convert to fraction form
253,925.19/380,140.11 = 187,660.71/x - Step 3: Cross multiply
253,925.19x = 380,140.11 × 187,660.71 - Step 4: Simplify right side
253,925.19x = 71,337,362,942.08 - Step 5: Solve for x
x = 71,337,362,942.08/253,925.19 - Step 6: Final answer
x = 280,938.50
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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.