Finding the Fourth Proportional to 221,373.21, 305,495.09 and 125,885.76
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Solution
The fourth proportional to 221,373.21, 305,495.09 and 125,885.76 is: 173,722.38
Step by Step Solution
- Step 1: Write the proportion equation
221,373.21 : 305,495.09 = 125,885.76 : x - Step 2: Convert to fraction form
221,373.21/305,495.09 = 125,885.76/x - Step 3: Cross multiply
221,373.21x = 305,495.09 × 125,885.76 - Step 4: Simplify right side
221,373.21x = 38,457,480,951.49 - Step 5: Solve for x
x = 38,457,480,951.49/221,373.21 - Step 6: Final answer
x = 173,722.38
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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.