Finding the Fourth Proportional to 221,244.53, 305,317.35 and 120,642.53
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Solution
The fourth proportional to 221,244.53, 305,317.35 and 120,642.53 is: 166,486.63
Step by Step Solution
- Step 1: Write the proportion equation
221,244.53 : 305,317.35 = 120,642.53 : x - Step 2: Convert to fraction form
221,244.53/305,317.35 = 120,642.53/x - Step 3: Cross multiply
221,244.53x = 305,317.35 × 120,642.53 - Step 4: Simplify right side
221,244.53x = 36,834,256,030.31 - Step 5: Solve for x
x = 36,834,256,030.31/221,244.53 - Step 6: Final answer
x = 166,486.63
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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.