Finding the Fourth Proportional to 371,842.74, 513,126.36 and 210,688.38
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Solution
The fourth proportional to 371,842.74, 513,126.36 and 210,688.38 is: 290,740.55
Step by Step Solution
- Step 1: Write the proportion equation
371,842.74 : 513,126.36 = 210,688.38 : x - Step 2: Convert to fraction form
371,842.74/513,126.36 = 210,688.38/x - Step 3: Cross multiply
371,842.74x = 513,126.36 × 210,688.38 - Step 4: Simplify right side
371,842.74x = 108,109,761,523.70 - Step 5: Solve for x
x = 108,109,761,523.70/371,842.74 - Step 6: Final answer
x = 290,740.55
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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.