Finding the Fourth Proportional to 442,927.31, 664,478.40 and 162,446.99
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Solution
The fourth proportional to 442,927.31, 664,478.40 and 162,446.99 is: 243,702.55
Step by Step Solution
- Step 1: Write the proportion equation
442,927.31 : 664,478.40 = 162,446.99 : x - Step 2: Convert to fraction form
442,927.31/664,478.40 = 162,446.99/x - Step 3: Cross multiply
442,927.31x = 664,478.40 × 162,446.99 - Step 4: Simplify right side
442,927.31x = 107,942,516,000.02 - Step 5: Solve for x
x = 107,942,516,000.02/442,927.31 - Step 6: Final answer
x = 243,702.55
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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.