Finding the Fourth Proportional to 302,447.80, 453,671.70 and 80,831.80
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Solution
The fourth proportional to 302,447.80, 453,671.70 and 80,831.80 is: 121,247.70
Step by Step Solution
- Step 1: Write the proportion equation
302,447.80 : 453,671.70 = 80,831.80 : x - Step 2: Convert to fraction form
302,447.80/453,671.70 = 80,831.80/x - Step 3: Cross multiply
302,447.80x = 453,671.70 × 80,831.80 - Step 4: Simplify right side
302,447.80x = 36,671,100,120.06 - Step 5: Solve for x
x = 36,671,100,120.06/302,447.80 - Step 6: Final answer
x = 121,247.70
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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.