Finding the Fourth Proportional to 230,937.40, 346,319.70 and 81,119.80
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Solution
The fourth proportional to 230,937.40, 346,319.70 and 81,119.80 is: 121,649.35
Step by Step Solution
- Step 1: Write the proportion equation
230,937.40 : 346,319.70 = 81,119.80 : x - Step 2: Convert to fraction form
230,937.40/346,319.70 = 81,119.80/x - Step 3: Cross multiply
230,937.40x = 346,319.70 × 81,119.80 - Step 4: Simplify right side
230,937.40x = 28,093,384,800.06 - Step 5: Solve for x
x = 28,093,384,800.06/230,937.40 - Step 6: Final answer
x = 121,649.35
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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.