Finding the Fourth Proportional to 202,947.70, 304,507.95 and 128,125.30
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Solution
The fourth proportional to 202,947.70, 304,507.95 and 128,125.30 is: 192,242.50
Step by Step Solution
- Step 1: Write the proportion equation
202,947.70 : 304,507.95 = 128,125.30 : x - Step 2: Convert to fraction form
202,947.70/304,507.95 = 128,125.30/x - Step 3: Cross multiply
202,947.70x = 304,507.95 × 128,125.30 - Step 4: Simplify right side
202,947.70x = 39,015,172,446.14 - Step 5: Solve for x
x = 39,015,172,446.14/202,947.70 - Step 6: Final answer
x = 192,242.50
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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.