Finding the Fourth Proportional to 402,005.36, 554,742.50 and 220,716.26
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Solution
The fourth proportional to 402,005.36, 554,742.50 and 220,716.26 is: 304,574.77
Step by Step Solution
- Step 1: Write the proportion equation
402,005.36 : 554,742.50 = 220,716.26 : x - Step 2: Convert to fraction form
402,005.36/554,742.50 = 220,716.26/x - Step 3: Cross multiply
402,005.36x = 554,742.50 × 220,716.26 - Step 4: Simplify right side
402,005.36x = 122,440,689,863.05 - Step 5: Solve for x
x = 122,440,689,863.05/402,005.36 - Step 6: Final answer
x = 304,574.77
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1.5x scale
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.