Finding the Fourth Proportional to 319,116.60, 478,893.60 and 141,750.90
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Solution
The fourth proportional to 319,116.60, 478,893.60 and 141,750.90 is: 212,723.50
Step by Step Solution
- Step 1: Write the proportion equation
319,116.60 : 478,893.60 = 141,750.90 : x - Step 2: Convert to fraction form
319,116.60/478,893.60 = 141,750.90/x - Step 3: Cross multiply
319,116.60x = 478,893.60 × 141,750.90 - Step 4: Simplify right side
319,116.60x = 67,883,598,804.24 - Step 5: Solve for x
x = 67,883,598,804.24/319,116.60 - Step 6: Final answer
x = 212,723.50
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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.