Finding the Fourth Proportional to 245,589.84, 338,910.60 and 138,159.84
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Solution
The fourth proportional to 245,589.84, 338,910.60 and 138,159.84 is: 190,658.68
Step by Step Solution
- Step 1: Write the proportion equation
245,589.84 : 338,910.60 = 138,159.84 : x - Step 2: Convert to fraction form
245,589.84/338,910.60 = 138,159.84/x - Step 3: Cross multiply
245,589.84x = 338,910.60 × 138,159.84 - Step 4: Simplify right side
245,589.84x = 46,823,834,270.30 - Step 5: Solve for x
x = 46,823,834,270.30/245,589.84 - Step 6: Final answer
x = 190,658.68
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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.