Finding the Fourth Proportional to 305,837.10, 458,828.55 and 147,935.70
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Solution
The fourth proportional to 305,837.10, 458,828.55 and 147,935.70 is: 221,938.81
Step by Step Solution
- Step 1: Write the proportion equation
305,837.10 : 458,828.55 = 147,935.70 : x - Step 2: Convert to fraction form
305,837.10/458,828.55 = 147,935.70/x - Step 3: Cross multiply
305,837.10x = 458,828.55 × 147,935.70 - Step 4: Simplify right side
305,837.10x = 67,877,122,724.24 - Step 5: Solve for x
x = 67,877,122,724.24/305,837.10 - Step 6: Final answer
x = 221,938.81
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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.