Finding the Fourth Proportional to 245,584.84, 338,903.70 and 138,154.84
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Solution
The fourth proportional to 245,584.84, 338,903.70 and 138,154.84 is: 190,651.78
Step by Step Solution
- Step 1: Write the proportion equation
245,584.84 : 338,903.70 = 138,154.84 : x - Step 2: Convert to fraction form
245,584.84/338,903.70 = 138,154.84/x - Step 3: Cross multiply
245,584.84x = 338,903.70 × 138,154.84 - Step 4: Simplify right side
245,584.84x = 46,821,186,448.91 - Step 5: Solve for x
x = 46,821,186,448.91/245,584.84 - Step 6: Final answer
x = 190,651.78
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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.