Finding the Fourth Proportional to 315,750.18, 435,734.73 and 172,510.19
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Solution
The fourth proportional to 315,750.18, 435,734.73 and 172,510.19 is: 238,063.77
Step by Step Solution
- Step 1: Write the proportion equation
315,750.18 : 435,734.73 = 172,510.19 : x - Step 2: Convert to fraction form
315,750.18/435,734.73 = 172,510.19/x - Step 3: Cross multiply
315,750.18x = 435,734.73 × 172,510.19 - Step 4: Simplify right side
315,750.18x = 75,168,678,883.23 - Step 5: Solve for x
x = 75,168,678,883.23/315,750.18 - Step 6: Final answer
x = 238,063.77
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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.