Finding the Fourth Proportional to 229,154.40, 343,990.80 and 135,712.80
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Solution
The fourth proportional to 229,154.40, 343,990.80 and 135,712.80 is: 203,722.71
Step by Step Solution
- Step 1: Write the proportion equation
229,154.40 : 343,990.80 = 135,712.80 : x - Step 2: Convert to fraction form
229,154.40/343,990.80 = 135,712.80/x - Step 3: Cross multiply
229,154.40x = 343,990.80 × 135,712.80 - Step 4: Simplify right side
229,154.40x = 46,683,954,642.24 - Step 5: Solve for x
x = 46,683,954,642.24/229,154.40 - Step 6: Final answer
x = 203,722.71
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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.