Finding the Fourth Proportional to 311,888.78, 430,406.00 and 175,922.31
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Solution
The fourth proportional to 311,888.78, 430,406.00 and 175,922.31 is: 242,772.49
Step by Step Solution
- Step 1: Write the proportion equation
311,888.78 : 430,406.00 = 175,922.31 : x - Step 2: Convert to fraction form
311,888.78/430,406.00 = 175,922.31/x - Step 3: Cross multiply
311,888.78x = 430,406.00 × 175,922.31 - Step 4: Simplify right side
311,888.78x = 75,718,016,509.99 - Step 5: Solve for x
x = 75,718,016,509.99/311,888.78 - Step 6: Final answer
x = 242,772.49
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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.