Finding the Fourth Proportional to 221,962.55, 332,946.92 and 72,203.63
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Solution
The fourth proportional to 221,962.55, 332,946.92 and 72,203.63 is: 108,306.45
Step by Step Solution
- Step 1: Write the proportion equation
221,962.55 : 332,946.92 = 72,203.63 : x - Step 2: Convert to fraction form
221,962.55/332,946.92 = 72,203.63/x - Step 3: Cross multiply
221,962.55x = 332,946.92 × 72,203.63 - Step 4: Simplify right side
221,962.55x = 24,039,976,692.67 - Step 5: Solve for x
x = 24,039,976,692.67/221,962.55 - Step 6: Final answer
x = 108,306.45
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1.5x scale
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.