Finding the Fourth Proportional to 315,574.24, 435,508.77 and 193,028.20
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Solution
The fourth proportional to 315,574.24, 435,508.77 and 193,028.20 is: 266,388.90
Step by Step Solution
- Step 1: Write the proportion equation
315,574.24 : 435,508.77 = 193,028.20 : x - Step 2: Convert to fraction form
315,574.24/435,508.77 = 193,028.20/x - Step 3: Cross multiply
315,574.24x = 435,508.77 × 193,028.20 - Step 4: Simplify right side
315,574.24x = 84,065,473,957.31 - Step 5: Solve for x
x = 84,065,473,957.31/315,574.24 - Step 6: Final answer
x = 266,388.90
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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.