Finding the Fourth Proportional to 219,887.70, 329,831.55 and 206,765.70
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Solution
The fourth proportional to 219,887.70, 329,831.55 and 206,765.70 is: 310,148.55
Step by Step Solution
- Step 1: Write the proportion equation
219,887.70 : 329,831.55 = 206,765.70 : x - Step 2: Convert to fraction form
219,887.70/329,831.55 = 206,765.70/x - Step 3: Cross multiply
219,887.70x = 329,831.55 × 206,765.70 - Step 4: Simplify right side
219,887.70x = 68,197,851,317.84 - Step 5: Solve for x
x = 68,197,851,317.84/219,887.70 - Step 6: Final answer
x = 310,148.55
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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.