Finding the Fourth Proportional to 401,056.13, 553,457.45 and 239,917.97
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Solution
The fourth proportional to 401,056.13, 553,457.45 and 239,917.97 is: 331,086.79
Step by Step Solution
- Step 1: Write the proportion equation
401,056.13 : 553,457.45 = 239,917.97 : x - Step 2: Convert to fraction form
401,056.13/553,457.45 = 239,917.97/x - Step 3: Cross multiply
401,056.13x = 553,457.45 × 239,917.97 - Step 4: Simplify right side
401,056.13x = 132,784,385,717.88 - Step 5: Solve for x
x = 132,784,385,717.88/401,056.13 - Step 6: Final answer
x = 331,086.79
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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.