Finding the Fourth Proportional to 621,253.44, 931,649.42 and 216,341.66
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Solution
The fourth proportional to 621,253.44, 931,649.42 and 216,341.66 is: 324,432.14
Step by Step Solution
- Step 1: Write the proportion equation
621,253.44 : 931,649.42 = 216,341.66 : x - Step 2: Convert to fraction form
621,253.44/931,649.42 = 216,341.66/x - Step 3: Cross multiply
621,253.44x = 931,649.42 × 216,341.66 - Step 4: Simplify right side
621,253.44x = 201,554,580,979.13 - Step 5: Solve for x
x = 201,554,580,979.13/621,253.44 - Step 6: Final answer
x = 324,432.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.