Finding the Fourth Proportional to 245,885.67, 339,354.51 and 138,476.70
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Solution
The fourth proportional to 245,885.67, 339,354.51 and 138,476.70 is: 191,116.03
Step by Step Solution
- Step 1: Write the proportion equation
245,885.67 : 339,354.51 = 138,476.70 : x - Step 2: Convert to fraction form
245,885.67/339,354.51 = 138,476.70/x - Step 3: Cross multiply
245,885.67x = 339,354.51 × 138,476.70 - Step 4: Simplify right side
245,885.67x = 46,992,692,674.92 - Step 5: Solve for x
x = 46,992,692,674.92/245,885.67 - Step 6: Final answer
x = 191,116.03
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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.