Finding the Fourth Proportional to 391,838.18, 587,812.62 and 125,536.40
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Solution
The fourth proportional to 391,838.18, 587,812.62 and 125,536.40 is: 188,322.33
Step by Step Solution
- Step 1: Write the proportion equation
391,838.18 : 587,812.62 = 125,536.40 : x - Step 2: Convert to fraction form
391,838.18/587,812.62 = 125,536.40/x - Step 3: Cross multiply
391,838.18x = 587,812.62 × 125,536.40 - Step 4: Simplify right side
391,838.18x = 73,791,880,189.37 - Step 5: Solve for x
x = 73,791,880,189.37/391,838.18 - Step 6: Final answer
x = 188,322.33
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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.