Finding the Fourth Proportional to 211,831.49, 317,746.97 and 54,059.95
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Solution
The fourth proportional to 211,831.49, 317,746.97 and 54,059.95 is: 81,089.85
Step by Step Solution
- Step 1: Write the proportion equation
211,831.49 : 317,746.97 = 54,059.95 : x - Step 2: Convert to fraction form
211,831.49/317,746.97 = 54,059.95/x - Step 3: Cross multiply
211,831.49x = 317,746.97 × 54,059.95 - Step 4: Simplify right side
211,831.49x = 17,177,384,246.18 - Step 5: Solve for x
x = 17,177,384,246.18/211,831.49 - Step 6: Final answer
x = 81,089.85
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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.