Finding the Fourth Proportional to 315,583.62, 435,506.99 and 172,343.65
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Solution
The fourth proportional to 315,583.62, 435,506.99 and 172,343.65 is: 237,835.11
Step by Step Solution
- Step 1: Write the proportion equation
315,583.62 : 435,506.99 = 172,343.65 : x - Step 2: Convert to fraction form
315,583.62/435,506.99 = 172,343.65/x - Step 3: Cross multiply
315,583.62x = 435,506.99 × 172,343.65 - Step 4: Simplify right side
315,583.62x = 75,056,864,257.11 - Step 5: Solve for x
x = 75,056,864,257.11/315,583.62 - Step 6: Final answer
x = 237,835.11
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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.