Finding the Fourth Proportional to 547,891.70, 821,837.55 and 153,907.70
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Solution
The fourth proportional to 547,891.70, 821,837.55 and 153,907.70 is: 230,861.55
Step by Step Solution
- Step 1: Write the proportion equation
547,891.70 : 821,837.55 = 153,907.70 : x - Step 2: Convert to fraction form
547,891.70/821,837.55 = 153,907.70/x - Step 3: Cross multiply
547,891.70x = 821,837.55 × 153,907.70 - Step 4: Simplify right side
547,891.70x = 126,487,127,094.14 - Step 5: Solve for x
x = 126,487,127,094.14/547,891.70 - Step 6: Final answer
x = 230,861.55
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1.5x scale
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.