Finding the Fourth Proportional to 319,246.20, 478,869.30 and 177,528.60
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Solution
The fourth proportional to 319,246.20, 478,869.30 and 177,528.60 is: 266,292.90
Step by Step Solution
- Step 1: Write the proportion equation
319,246.20 : 478,869.30 = 177,528.60 : x - Step 2: Convert to fraction form
319,246.20/478,869.30 = 177,528.60/x - Step 3: Cross multiply
319,246.20x = 478,869.30 × 177,528.60 - Step 4: Simplify right side
319,246.20x = 85,012,996,411.98 - Step 5: Solve for x
x = 85,012,996,411.98/319,246.20 - Step 6: Final answer
x = 266,292.90
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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.