Finding the Fourth Proportional to 304,438.76, 420,115.17 and 168,478.46
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Solution
The fourth proportional to 304,438.76, 420,115.17 and 168,478.46 is: 232,494.56
Step by Step Solution
- Step 1: Write the proportion equation
304,438.76 : 420,115.17 = 168,478.46 : x - Step 2: Convert to fraction form
304,438.76/420,115.17 = 168,478.46/x - Step 3: Cross multiply
304,438.76x = 420,115.17 × 168,478.46 - Step 4: Simplify right side
304,438.76x = 70,780,356,864.24 - Step 5: Solve for x
x = 70,780,356,864.24/304,438.76 - Step 6: Final answer
x = 232,494.56
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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.