Finding the Fourth Proportional to 245,397.29, 338,658.03 and 137,966.99
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Solution
The fourth proportional to 245,397.29, 338,658.03 and 137,966.99 is: 190,399.94
Step by Step Solution
- Step 1: Write the proportion equation
245,397.29 : 338,658.03 = 137,966.99 : x - Step 2: Convert to fraction form
245,397.29/338,658.03 = 137,966.99/x - Step 3: Cross multiply
245,397.29x = 338,658.03 × 137,966.99 - Step 4: Simplify right side
245,397.29x = 46,723,627,345.14 - Step 5: Solve for x
x = 46,723,627,345.14/245,397.29 - Step 6: Final answer
x = 190,399.94
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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.