Finding the Fourth Proportional to 221,348.98, 305,430.78 and 125,845.12
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Solution
The fourth proportional to 221,348.98, 305,430.78 and 125,845.12 is: 173,648.75
Step by Step Solution
- Step 1: Write the proportion equation
221,348.98 : 305,430.78 = 125,845.12 : x - Step 2: Convert to fraction form
221,348.98/305,430.78 = 125,845.12/x - Step 3: Cross multiply
221,348.98x = 305,430.78 × 125,845.12 - Step 4: Simplify right side
221,348.98x = 38,436,973,160.79 - Step 5: Solve for x
x = 38,436,973,160.79/221,348.98 - Step 6: Final answer
x = 173,648.75
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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.