Finding the Fourth Proportional to 354,462.48, 531,538.20 and 129,764.70
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Solution
The fourth proportional to 354,462.48, 531,538.20 and 129,764.70 is: 194,590.12
Step by Step Solution
- Step 1: Write the proportion equation
354,462.48 : 531,538.20 = 129,764.70 : x - Step 2: Convert to fraction form
354,462.48/531,538.20 = 129,764.70/x - Step 3: Cross multiply
354,462.48x = 531,538.20 × 129,764.70 - Step 4: Simplify right side
354,462.48x = 68,974,895,061.54 - Step 5: Solve for x
x = 68,974,895,061.54/354,462.48 - Step 6: Final answer
x = 194,590.12
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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.