Finding the Fourth Proportional to 338,751.18, 508,146.21 and 102,069.18
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Solution
The fourth proportional to 338,751.18, 508,146.21 and 102,069.18 is: 153,109.63
Step by Step Solution
- Step 1: Write the proportion equation
338,751.18 : 508,146.21 = 102,069.18 : x - Step 2: Convert to fraction form
338,751.18/508,146.21 = 102,069.18/x - Step 3: Cross multiply
338,751.18x = 508,146.21 × 102,069.18 - Step 4: Simplify right side
338,751.18x = 51,866,066,974.81 - Step 5: Solve for x
x = 51,866,066,974.81/338,751.18 - Step 6: Final answer
x = 153,109.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.