Finding the Fourth Proportional to 302,780.20, 417,836.67 and 168,644.20
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Solution
The fourth proportional to 302,780.20, 417,836.67 and 168,644.20 is: 232,728.99
Step by Step Solution
- Step 1: Write the proportion equation
302,780.20 : 417,836.67 = 168,644.20 : x - Step 2: Convert to fraction form
302,780.20/417,836.67 = 168,644.20/x - Step 3: Cross multiply
302,780.20x = 417,836.67 × 168,644.20 - Step 4: Simplify right side
302,780.20x = 70,465,730,942.81 - Step 5: Solve for x
x = 70,465,730,942.81/302,780.20 - Step 6: Final answer
x = 232,728.99
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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.