Finding the Fourth Proportional to 251,840.34, 375,917.96 and 221,947.70
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Solution
The fourth proportional to 251,840.34, 375,917.96 and 221,947.70 is: 331,297.70
Step by Step Solution
- Step 1: Write the proportion equation
251,840.34 : 375,917.96 = 221,947.70 : x - Step 2: Convert to fraction form
251,840.34/375,917.96 = 221,947.70/x - Step 3: Cross multiply
251,840.34x = 375,917.96 × 221,947.70 - Step 4: Simplify right side
251,840.34x = 83,434,125,285.97 - Step 5: Solve for x
x = 83,434,125,285.97/251,840.34 - Step 6: Final answer
x = 331,297.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.