Finding the Fourth Proportional to 305,226.34, 421,124.58 and 176,154.46
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Solution
The fourth proportional to 305,226.34, 421,124.58 and 176,154.46 is: 243,042.50
Step by Step Solution
- Step 1: Write the proportion equation
305,226.34 : 421,124.58 = 176,154.46 : x - Step 2: Convert to fraction form
305,226.34/421,124.58 = 176,154.46/x - Step 3: Cross multiply
305,226.34x = 421,124.58 × 176,154.46 - Step 4: Simplify right side
305,226.34x = 74,182,972,982.63 - Step 5: Solve for x
x = 74,182,972,982.63/305,226.34 - Step 6: Final answer
x = 243,042.50
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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.