Finding the Fourth Proportional to 611,489.70, 917,234.55 and 168,257.70
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Solution
The fourth proportional to 611,489.70, 917,234.55 and 168,257.70 is: 252,386.55
Step by Step Solution
- Step 1: Write the proportion equation
611,489.70 : 917,234.55 = 168,257.70 : x - Step 2: Convert to fraction form
611,489.70/917,234.55 = 168,257.70/x - Step 3: Cross multiply
611,489.70x = 917,234.55 × 168,257.70 - Step 4: Simplify right side
611,489.70x = 154,331,775,743.54 - Step 5: Solve for x
x = 154,331,775,743.54/611,489.70 - Step 6: Final answer
x = 252,386.55
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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.