Finding the Fourth Proportional to 335,819.70, 503,729.55 and 86,501.70
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Solution
The fourth proportional to 335,819.70, 503,729.55 and 86,501.70 is: 129,752.55
Step by Step Solution
- Step 1: Write the proportion equation
335,819.70 : 503,729.55 = 86,501.70 : x - Step 2: Convert to fraction form
335,819.70/503,729.55 = 86,501.70/x - Step 3: Cross multiply
335,819.70x = 503,729.55 × 86,501.70 - Step 4: Simplify right side
335,819.70x = 43,573,462,415.24 - Step 5: Solve for x
x = 43,573,462,415.24/335,819.70 - Step 6: Final answer
x = 129,752.55
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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.