Finding the Fourth Proportional to 221,475.30, 332,212.95 and 81,215.70
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Solution
The fourth proportional to 221,475.30, 332,212.95 and 81,215.70 is: 121,823.55
Step by Step Solution
- Step 1: Write the proportion equation
221,475.30 : 332,212.95 = 81,215.70 : x - Step 2: Convert to fraction form
221,475.30/332,212.95 = 81,215.70/x - Step 3: Cross multiply
221,475.30x = 332,212.95 × 81,215.70 - Step 4: Simplify right side
221,475.30x = 26,980,907,283.32 - Step 5: Solve for x
x = 26,980,907,283.32/221,475.30 - Step 6: Final answer
x = 121,823.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.