Finding the Fourth Proportional to 221,972.84, 306,323.70 and 121,370.84
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Solution
The fourth proportional to 221,972.84, 306,323.70 and 121,370.84 is: 167,492.40
Step by Step Solution
- Step 1: Write the proportion equation
221,972.84 : 306,323.70 = 121,370.84 : x - Step 2: Convert to fraction form
221,972.84/306,323.70 = 121,370.84/x - Step 3: Cross multiply
221,972.84x = 306,323.70 × 121,370.84 - Step 4: Simplify right side
221,972.84x = 37,178,764,780.91 - Step 5: Solve for x
x = 37,178,764,780.91/221,972.84 - Step 6: Final answer
x = 167,492.40
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1.5x scale
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.