Finding the Fourth Proportional to 340,446.75, 469,831.10 and 189,543.75
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Solution
The fourth proportional to 340,446.75, 469,831.10 and 189,543.75 is: 261,578.49
Step by Step Solution
- Step 1: Write the proportion equation
340,446.75 : 469,831.10 = 189,543.75 : x - Step 2: Convert to fraction form
340,446.75/469,831.10 = 189,543.75/x - Step 3: Cross multiply
340,446.75x = 469,831.10 × 189,543.75 - Step 4: Simplify right side
340,446.75x = 89,053,547,612.91 - Step 5: Solve for x
x = 89,053,547,612.91/340,446.75 - Step 6: Final answer
x = 261,578.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.