Finding the Fourth Proportional to 221,844.12, 306,199.28 and 126,407.08
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Solution
The fourth proportional to 221,844.12, 306,199.28 and 126,407.08 is: 174,472.76
Step by Step Solution
- Step 1: Write the proportion equation
221,844.12 : 306,199.28 = 126,407.08 : x - Step 2: Convert to fraction form
221,844.12/306,199.28 = 126,407.08/x - Step 3: Cross multiply
221,844.12x = 306,199.28 × 126,407.08 - Step 4: Simplify right side
221,844.12x = 38,705,756,882.90 - Step 5: Solve for x
x = 38,705,756,882.90/221,844.12 - Step 6: Final answer
x = 174,472.76
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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.