Finding the Fourth Proportional to 442,928.70, 664,393.05 and 162,555.30
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Solution
The fourth proportional to 442,928.70, 664,393.05 and 162,555.30 is: 243,832.95
Step by Step Solution
- Step 1: Write the proportion equation
442,928.70 : 664,393.05 = 162,555.30 : x - Step 2: Convert to fraction form
442,928.70/664,393.05 = 162,555.30/x - Step 3: Cross multiply
442,928.70x = 664,393.05 × 162,555.30 - Step 4: Simplify right side
442,928.70x = 108,000,611,560.67 - Step 5: Solve for x
x = 108,000,611,560.67/442,928.70 - Step 6: Final answer
x = 243,832.95
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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.