Finding the Fourth Proportional to 315,904.68, 435,960.18 and 172,674.36
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Solution
The fourth proportional to 315,904.68, 435,960.18 and 172,674.36 is: 238,297.02
Step by Step Solution
- Step 1: Write the proportion equation
315,904.68 : 435,960.18 = 172,674.36 : x - Step 2: Convert to fraction form
315,904.68/435,960.18 = 172,674.36/x - Step 3: Cross multiply
315,904.68x = 435,960.18 × 172,674.36 - Step 4: Simplify right side
315,904.68x = 75,279,145,066.98 - Step 5: Solve for x
x = 75,279,145,066.98/315,904.68 - Step 6: Final answer
x = 238,297.02
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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.