Finding the Fourth Proportional to 258,119.94, 387,178.37 and 100,348.39
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Solution
The fourth proportional to 258,119.94, 387,178.37 and 100,348.39 is: 150,521.99
Step by Step Solution
- Step 1: Write the proportion equation
258,119.94 : 387,178.37 = 100,348.39 : x - Step 2: Convert to fraction form
258,119.94/387,178.37 = 100,348.39/x - Step 3: Cross multiply
258,119.94x = 387,178.37 × 100,348.39 - Step 4: Simplify right side
258,119.94x = 38,852,727,802.03 - Step 5: Solve for x
x = 38,852,727,802.03/258,119.94 - Step 6: Final answer
x = 150,521.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.