Finding the Fourth Proportional to 221,466.98, 305,620.17 and 120,865.70
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Solution
The fourth proportional to 221,466.98, 305,620.17 and 120,865.70 is: 166,792.34
Step by Step Solution
- Step 1: Write the proportion equation
221,466.98 : 305,620.17 = 120,865.70 : x - Step 2: Convert to fraction form
221,466.98/305,620.17 = 120,865.70/x - Step 3: Cross multiply
221,466.98x = 305,620.17 × 120,865.70 - Step 4: Simplify right side
221,466.98x = 36,938,995,781.17 - Step 5: Solve for x
x = 36,938,995,781.17/221,466.98 - Step 6: Final answer
x = 166,792.34
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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.