Finding the Fourth Proportional to 221,267.60, 305,376.72 and 135,208.88
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Solution
The fourth proportional to 221,267.60, 305,376.72 and 135,208.88 is: 186,605.02
Step by Step Solution
- Step 1: Write the proportion equation
221,267.60 : 305,376.72 = 135,208.88 : x - Step 2: Convert to fraction form
221,267.60/305,376.72 = 135,208.88/x - Step 3: Cross multiply
221,267.60x = 305,376.72 × 135,208.88 - Step 4: Simplify right side
221,267.60x = 41,289,644,289.27 - Step 5: Solve for x
x = 41,289,644,289.27/221,267.60 - Step 6: Final answer
x = 186,605.02
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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.