Finding the Fourth Proportional to 396,866.23, 547,457.26 and 251,405.62
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Solution
The fourth proportional to 396,866.23, 547,457.26 and 251,405.62 is: 346,801.57
Step by Step Solution
- Step 1: Write the proportion equation
396,866.23 : 547,457.26 = 251,405.62 : x - Step 2: Convert to fraction form
396,866.23/547,457.26 = 251,405.62/x - Step 3: Cross multiply
396,866.23x = 547,457.26 × 251,405.62 - Step 4: Simplify right side
396,866.23x = 137,633,831,873.80 - Step 5: Solve for x
x = 137,633,831,873.80/396,866.23 - Step 6: Final answer
x = 346,801.57
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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.