Finding the Fourth Proportional to 338,631.49, 467,312.12 and 187,728.49
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Solution
The fourth proportional to 338,631.49, 467,312.12 and 187,728.49 is: 259,065.68
Step by Step Solution
- Step 1: Write the proportion equation
338,631.49 : 467,312.12 = 187,728.49 : x - Step 2: Convert to fraction form
338,631.49/467,312.12 = 187,728.49/x - Step 3: Cross multiply
338,631.49x = 467,312.12 × 187,728.49 - Step 4: Simplify right side
338,631.49x = 87,727,798,646.30 - Step 5: Solve for x
x = 87,727,798,646.30/338,631.49 - Step 6: Final answer
x = 259,065.68
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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.