Finding the Fourth Proportional to 328,237.44, 492,408.74 and 138,699.66
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Solution
The fourth proportional to 328,237.44, 492,408.74 and 138,699.66 is: 208,071.71
Step by Step Solution
- Step 1: Write the proportion equation
328,237.44 : 492,408.74 = 138,699.66 : x - Step 2: Convert to fraction form
328,237.44/492,408.74 = 138,699.66/x - Step 3: Cross multiply
328,237.44x = 492,408.74 × 138,699.66 - Step 4: Simplify right side
328,237.44x = 68,296,924,819.03 - Step 5: Solve for x
x = 68,296,924,819.03/328,237.44 - Step 6: Final answer
x = 208,071.71
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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.