Finding the Fourth Proportional to 221,266.19, 305,395.70 and 140,677.98
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Solution
The fourth proportional to 221,266.19, 305,395.70 and 140,677.98 is: 194,166.35
Step by Step Solution
- Step 1: Write the proportion equation
221,266.19 : 305,395.70 = 140,677.98 : x - Step 2: Convert to fraction form
221,266.19/305,395.70 = 140,677.98/x - Step 3: Cross multiply
221,266.19x = 305,395.70 × 140,677.98 - Step 4: Simplify right side
221,266.19x = 42,962,449,252.10 - Step 5: Solve for x
x = 42,962,449,252.10/221,266.19 - Step 6: Final answer
x = 194,166.35
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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.