Finding the Fourth Proportional to 305,351.70, 421,377.16 and 176,285.82
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Solution
The fourth proportional to 305,351.70, 421,377.16 and 176,285.82 is: 243,269.70
Step by Step Solution
- Step 1: Write the proportion equation
305,351.70 : 421,377.16 = 176,285.82 : x - Step 2: Convert to fraction form
305,351.70/421,377.16 = 176,285.82/x - Step 3: Cross multiply
305,351.70x = 421,377.16 × 176,285.82 - Step 4: Simplify right side
305,351.70x = 74,282,817,739.16 - Step 5: Solve for x
x = 74,282,817,739.16/305,351.70 - Step 6: Final answer
x = 243,269.70
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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.