Finding the Fourth Proportional to 395,588.40, 593,363.52 and 129,313.68
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Solution
The fourth proportional to 395,588.40, 593,363.52 and 129,313.68 is: 193,964.28
Step by Step Solution
- Step 1: Write the proportion equation
395,588.40 : 593,363.52 = 129,313.68 : x - Step 2: Convert to fraction form
395,588.40/593,363.52 = 129,313.68/x - Step 3: Cross multiply
395,588.40x = 593,363.52 × 129,313.68 - Step 4: Simplify right side
395,588.40x = 76,730,020,348.95 - Step 5: Solve for x
x = 76,730,020,348.95/395,588.40 - Step 6: Final answer
x = 193,964.28
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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.