Finding the Fourth Proportional to 245,718.09, 339,006.11 and 148,952.97
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Solution
The fourth proportional to 245,718.09, 339,006.11 and 148,952.97 is: 205,503.66
Step by Step Solution
- Step 1: Write the proportion equation
245,718.09 : 339,006.11 = 148,952.97 : x - Step 2: Convert to fraction form
245,718.09/339,006.11 = 148,952.97/x - Step 3: Cross multiply
245,718.09x = 339,006.11 × 148,952.97 - Step 4: Simplify right side
245,718.09x = 50,495,966,187.88 - Step 5: Solve for x
x = 50,495,966,187.88/245,718.09 - Step 6: Final answer
x = 205,503.66
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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.