Finding the Fourth Proportional to 245,518.72, 338,812.49 and 138,088.71
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Solution
The fourth proportional to 245,518.72, 338,812.49 and 138,088.71 is: 190,560.54
Step by Step Solution
- Step 1: Write the proportion equation
245,518.72 : 338,812.49 = 138,088.71 : x - Step 2: Convert to fraction form
245,518.72/338,812.49 = 138,088.71/x - Step 3: Cross multiply
245,518.72x = 338,812.49 × 138,088.71 - Step 4: Simplify right side
245,518.72x = 46,786,180,021.21 - Step 5: Solve for x
x = 46,786,180,021.21/245,518.72 - Step 6: Final answer
x = 190,560.54
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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.