Finding the Fourth Proportional to 221,507.36, 305,651.60 and 124,698.96
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Solution
The fourth proportional to 221,507.36, 305,651.60 and 124,698.96 is: 172,068.49
Step by Step Solution
- Step 1: Write the proportion equation
221,507.36 : 305,651.60 = 124,698.96 : x - Step 2: Convert to fraction form
221,507.36/305,651.60 = 124,698.96/x - Step 3: Cross multiply
221,507.36x = 305,651.60 × 124,698.96 - Step 4: Simplify right side
221,507.36x = 38,114,436,642.34 - Step 5: Solve for x
x = 38,114,436,642.34/221,507.36 - Step 6: Final answer
x = 172,068.49
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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.